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Flush King

(164 Reviews) Add A Review
Catalog Item # 20522
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Description


VALTERRA PRODUCTS LLC 133
Flush King Reverse RV flush valve provides you with the quickest and most effective way to fill, rinse and remove residue from your black or gray holding tanks.
Flush King rapidly refills the holding tank no matter what height of tank or angles in plumbing. Unique design eliminates messy wands and hoses inside the RV by allowing you to reverse flush your tanks from the outside. Powerful performance removes clogs in drain pipes and improves sensor performance for more accurate readings. Four locking hooks provide a tighter seal to guard against leakage. For your convenience, the handle swivels 360 degrees to make hook up and operation easier. The innovative clear barrel allows you to see when the tanks are completely clean of residue, so there is no guess work.

Flush King fits all Trailers and 5th Wheels and most Motor Homes and is not a permanent attachment. Twist on and off, how easy does it get! Connect the Flush King to your RV's sewer pipe and your sewer hose to the valve. Now you are ready to dump, rinse or clean your tanks in one easy operation! When you are finished, simply remove the Flush King and store it away.

Features:

  • Removes remaining residue in the gray and black tank after dumping
  • Improves sensor performance
  • Eliminates messy wands and hoses inside the RV
  • Works on Motorhomes, Trailers and 5th Wheel RVs
  • Clear barrel allows you to see the cleaning in action
  • Sanitary and efficient, no other product on the market does a complete job like the Flush King
  • Fills tanks at any height or angle of plumbing
  • Backflow preventer included
  • Non permanent attachment
  • Easy to use and connect



Technical Specs


Tech Specs

Weight: 2.7 lbs.

Manufacturer: Valterra Products Llc

Mfg Part #: FK-01



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Reviews


Flush King: Customer Reviews

Camper's Choice Rating

(5 Based on 164 Reviews)

Pros
Easy to use (1)
Cons
Have to take off and store (1)

Reviewed by 164 customers

By

Great product


0 out of 1 people found this review helpful.
November 08, 2014
Our previous camper had a water hook up to the black water tank to assist in emptying the tank. Our new camper did not have this option. The flush king was an easy add-on that performed the same function. I thought about installing the kind that goes into the black water tank, but this is much easier. I would recommend to all.
Pros: Easy to use
Cons: Have to take off and store
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By

You cant believe how much is left after a dump


1 out of 1 people found this review helpful.
August 19, 2014
I bought this item earlier this year after reading a review of it. I have used it twice when connected to a septic line and I cant believe what is left. I full flushed twice and there was still stuff coming out. This really works.
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By

Great unit!


0 out of 1 people found this review helpful.
July 01, 2014
This unit resolves issues I had with my tanks with no internal rinsers. Wouldn't be without it now. I backflush each tank when dumping at least once to keep them cleared. Makes a world of difference! Also, I like how easy it is to rinse the stinky slinky with the Flush King! Simple! Great product, HIGHLY recommended. :)
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By

WOW


1 out of 2 people found this review helpful.
June 24, 2014
I was wondering about making my own flush system. Being an ex submariner, I know how important it is to have a system to flush the tanks and the system. Heavy waste will cause issues and you will need to back flush and keep the tanks clean to reduce issues and smells. This thing is well worth it. I am glad I found it and purchased it. Simple to use and it works like a champ and it does matter and saves time and keeps the hoses and the tanks clean. Buy it! Henry
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By

Well worth it


1 out of 3 people found this review helpful.
May 25, 2014
Just used this for the first time. What a surprise. You think a simple dump would get everything but it doesn't. I saw so much stuff come out after using this following a flush. It was simple and clean and easy to do.
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By

This is amazing


1 out of 2 people found this review helpful.
May 20, 2014
My husband used to bring the wand thing in the camper to clean out the black tank after we were done camping for the weekend and it was such a mess. Since we have purchased this, I don't have to worry about that. I love that he can take care of this all on the outside and it cleans not only the black but the gray tank too. It has really helped to keep the sensors clean also.
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By

Absolute Problem Solver!


1 out of 2 people found this review helpful.
January 15, 2014
My husband and I live in our 5th wheel toy hauler full time (for the time being) and we get pretty cold winters here in Utah. During the summer we kept the black tank closed and drained it when it got full to keep things from drying out and causing problems. Well, when winter came around and temperatures got below zero, we left the tank open because we didn't want a solid block of ice in the black tank. Bad idea. Blocked up nasty black tank with zero drainage. I did some research online and found this product to help break up the clogs and flush that tank out. I was encouraged by the many high reviews and we decided to try it, even though it was rather expensive. My husband put it on and turned on the water for just a minute or two because he didn't want to overflow the already full tank. He pulled the drain and immediately got quite a bit of nasty sludge out. Amazing! Did it a number of times over about 30 minutes and got so much junk out we were both amazed. If you have any sort of black tank issues, this product is very highly recommended! Well worth the money! Easy to install and use. Saved us from having to pack everything up and drag the trailer to the service center, and saved us from that bill as well. Cannot say enough good about the Flush King! Thank you!
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By

Happy camper


0 out of 1 people found this review helpful.
November 23, 2013
works great !! My fifth wheel has needed this product as I have to macerate weekly for six months of the year, and I have no gate on my outlet. Now I can backflush to cleanout my black tank.
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By

Worked as planned.


1 out of 2 people found this review helpful.
November 21, 2013
After dumping the black water tank, this unit, lets you clean your black water holding tank, with gray water, when you dump the gray water. It also lets you see the drainage while you drain so you know when you are empty. Great tool for all Campers.
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By

Quick and easy clean for Tanks


0 out of 1 people found this review helpful.
November 20, 2013
Work great, cleans out thoses holding tanks quick and easy. Got out debris that could effect the sensors and easy on off the discharge pipe. Clear plastic allows you to see how clean the tank return is. Worth the purchase and can use on any rv and remove or reuse.
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By

Good Product


1 out of 2 people found this review helpful.
November 20, 2013
Could have gone with a less expensive option, but I went with this based on other reviews. No regrets on the purchase. Does the job easily and without mess.
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By

Winner!!


1 out of 2 people found this review helpful.
November 19, 2013
I finally have EMPTY sensor readings on my black and grey tanks!!! I love love love this product! Super easy to use and highly effective. Not too expensive either. This is a real winner!
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By

Outstanding Product for the not so fun part of camping


2 out of 3 people found this review helpful.
November 04, 2013
Noticed that our black tank kept reading 1/3 full after we would dump so I knew something was causing an issue. Bought this and used it for the first time. Did a great job cleaning the tank out that I would recommend the Flush King to anyone who is having issues getting everything out of the tank. Was simple to use. I carry an extra 10 foot hose attachment since some campsites' hose has been cut off. Definitely recommend this!
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By

An essential accessory


1 out of 2 people found this review helpful.
July 29, 2013
After using the Flush King to back-flush black tank for the first time, I knew this product would prevent future problems. Very little tissue paper came out during the first dump, but after back-flushing with the Flush King, there were great gobs coming out! Consider this product an essential accessory.
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By

Works Good


1 out of 1 people found this review helpful.
July 17, 2013
This flush king seems to work very well. It is easy to attach and saves times from having to flush by adding water to the toilet.
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By

flush king


1 out of 2 people found this review helpful.
May 01, 2013
worked great very helpfull
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By

An effective device for cleaning tanks


1 out of 1 people found this review helpful.
April 18, 2013
This device is one of those items that should be supplied with every new RV. After several uses I am persuded that it is an indispensible device for effectively maintaining the service tanks on my RV. I regret that I did not learn of this device sooner I highly recommend this product, you will not be disappointed.
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By

flush king reverse flush valve


1 out of 2 people found this review helpful.
December 03, 2012
received item very quickly. free shipping and an excellent price made a great deal. item is constructed well and performed perfect. valve operates smooth with solid and strong feel when swisting knob to perform flush operations. much better product than another similar item from another manufacturer.
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By

Worked Great


1 out of 2 people found this review helpful.
December 03, 2012
Worked great I was very pleased with the clean out job the flush king did..
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By

This is the best.


1 out of 1 people found this review helpful.
October 04, 2012
I bought the flush king last time it was on sale so it's been a few months. Well today was the first time I used it and it is great. It work just great and my tanks are clean and I am ready to winterize the camper. This is the best $50.00 I ever spent. And you know what? My wife agreed.
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By

Cleaned off faulty sensors


0 out of 1 people found this review helpful.
October 01, 2012
I have been using this product for several years and it worked well. My last experience dealt with both the black and grey water sensors giving wrong readings. I filled the black water tank full (required someone in the bathroom watching the water level) rocked the trailer gently from side to side and flushed. Did the same thing with the grey water. Both sensors cleared and are working fine.I highly recommend this product.
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By

Flush King


1 out of 2 people found this review helpful.
September 07, 2012
I was very pleased with the flush king. So much easier to use than any item I have wasted my money on. I can now understand why they were on back order. Think that these should be standard material from any RV sales enviroment. Great Product.
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By

Flush King is a Great Product


1 out of 2 people found this review helpful.
August 29, 2012
This product is easy to use and very well made. The package directions are very clear and easy to understand. It's great to be able to flush out the gray and black water tanks easily and know that they are totally clean when you come home. Due to the position of the hose nozzel we did purchase a 90 degree garden hose elbow to make it easier to attach the hose.
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By

Great except for 1 thing


0 out of 1 people found this review helpful.
August 28, 2012
Great product. Had a different style without the valve. That was a pain. Our camper is a fith wheel but basically a park model. Due to lack of movement we do get blockage on occasion. The flush king worked awesome, except for the incoming hose connection. At least on our camper there is no room to hook on the hose with the unit angled down, so I have to put it on horizontal. But it still does the job.
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By

Great Product


1 out of 2 people found this review helpful.
August 28, 2012
This product is amazing! it is a great saver, shows you when it is empty, easy to use and saved me greatly. Shower was full, opened the shower and kitchen waste let them level out, dumped the next day. Also the bolts holding it together will let go under very little pressure so be careful!Still a great product and would recommend to anyone looking for a quick easy connection!
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By

Don't use toilet without one.


1 out of 1 people found this review helpful.
July 04, 2012
Can't say enough about this product. Really works on flushing out your black and grey water tanks. Helps give a true reading on your gauge inside your RV. Plus when your done it is good for rinsing out your sewer hose. Every camper needs one. Well built !
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By

Great Product


2 out of 3 people found this review helpful.
June 23, 2012
This is a great product. Flushes out the holding tanks great. No need for a dump station with the product.
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By

flush king


0 out of 1 people found this review helpful.
June 10, 2012
works great
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By

Easy to use and very effective!


2 out of 3 people found this review helpful.
June 04, 2012
I was very please by how easy this product is to use.
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By

Flush King


1 out of 2 people found this review helpful.
June 02, 2012
It works great for what it does when you don't have a built in one on your rig. This is the 3rd one I've had since they came out with them.
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By

Flush King is the best!


1 out of 1 people found this review helpful.
June 01, 2012
Outstanding! I now feel confident both grey and black tanks are clean. Very easy to use and makes an unpleasant task much easier.
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By

Flush king


1 out of 1 people found this review helpful.
May 22, 2012
This product works perfectly and easily. Don't leave home without it. A must for any holding tank.
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By

Long live the king!


2 out of 7 people found this review helpful.
April 02, 2012
We've been using the Flush King for a number of years now. I would not be without one. It's easy to use and it works! We use it every time we are hooked up and it is part of our packing up to leave routine. It does help to have someone inside the trailer while you're filling the tanks up to re-flush the system. That person can watch the level of the tanks and advise when to switch to another tank -- yes, it is great for flushing grey water tanks as well! A couple other reviewers have mentioned the plastic getting a little brittle with age. That happens to all plastics. I just make sure I turn the device smoothly and gently while hooking and unhooking it -- ours has lasted a long time. I'd buy another in a heartbeat!
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By

Good Product


5 out of 9 people found this review helpful.
March 25, 2012
The Flush King opened up a black tank pipe blockage very easily and with no mess. It also does a great job or rinsing out the sewer hose. No matter what, emptying the sewage is no fun and not so clean but this device makes it a whole lot cleaner with the hose. I did have to buy a 90 degree water hose adapter to be able to use this directly on my camper sewage outlet. From now on, I will always use this when connected to a sewage dump.
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By

Best Product


1 out of 2 people found this review helpful.
September 08, 2011
This is a great product and easy to work. It was recommended by a friend. Easy to install and use.
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By

A must have for all RV'S!!


1 out of 2 people found this review helpful.
September 07, 2011
We have owned this unit for 8 years now and it still works like new. We bought a used fifth wheel the first time out used the flush king and WOW you would not believe how much build up came out. We use it every time and have never had a problem with our tank probes not reading correctly. Worth every penny!! Happy Camping
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By

An RV Must Have!!!!!


2 out of 4 people found this review helpful.
August 25, 2011
Have had my trailer for 7 years, thought we were doing a very good job keeping the tanks clean and well flushed...... WRONG - Not until we used the Flush King did we realize how the tanks were NOT well flushed. After flushing the Black Tank 6 times, we FINALLY got an EMPTY reading on our gauge. Fantastic product!!!!! Will use every time we have FULL hookup. When reading the box it comes with a WARNING!! Make sure when using the Flush King that when you turn on the water to flush the tank that you have the Black tank valve (or Gray) OPEN before you turn on the water or you will blow the gasket on the Flush King (we learned that the hard way) I called Flush King in California to request a repair kit and the service I received from them was Fantastic - GREAT company to deal with!!
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By

Flush King


1 out of 2 people found this review helpful.
August 17, 2011
We are new RVer's and learning as we go. This item has made cleaning our tank so easy. We had no problem even the 1st time of use. The clear tube is great.
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By

Best money you'll spend


1 out of 1 people found this review helpful.
July 29, 2011
As a fairly new RV'er. I was intimidated by many rv tasks, the toilet being one of them ...this product is outstanding, easy to use and gets the job done...I was getting some false readings on the black water gauge and thought I was doing and adquate job cleaing and maintaining the tank ...Boy was I wrong !!! The first time I used this (after cleaning with a wand as usual).I was AMAZED at what I saw ......id give it 10 stars if I could.
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By

Best RV product


1 out of 4 people found this review helpful.
July 10, 2011
My second camper kept reading 1/3 full each time I dumped the black water tank. I purchased this and used it and I was amazed at what was left in my tank and after using it my tank read empty. I have recently purchased a new camper and I use this product everytime I empty the tank. It is easy to use and no mess. I recommend anyone who owns a camper to purchase and use, you just think your tank is empty until you use this product.
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By

Plan on replacing after a few years.


1 out of 2 people found this review helpful.
June 20, 2011
I agree that the Flush King should be a standard item for any RV as it gets a black tank cleaner than any other item we have used. Just be careful not to overflow your tanks while back-filling them. However this product does have a life expectancy of about 3-5 years as we are about to purchase our 3rd one in 6 years. The plastic tends to get brittle after a few years and in our case the water inlet valve has broken off leaving the unit totally useless. I have noticed other issues that have been mentioned in other reviews that again shows this product has a very limited life span. This item is also a bit pricey to only last for a short time. Like with most good ideas, poor quality can subtract from the overall satisfaction so I am rating as a 4.
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By

Would not camp without it!


1 out of 2 people found this review helpful.
June 01, 2011
I have used the Flush King since 2006 and it really does a great job of cleaning out my tanks! I had the same issue with a faulty seal as one of the other reviewers mentioned but I called the Customer Service number printed on the label on the front of the unit and they sent me 5 seals by Express Mail. It took me about 5 minutes to replace the faulty seal and I have not had a problem with it since then. I would strongly urge anyone with a camper to have one of these handy little devices!
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By

SUPER HELPER


3 out of 6 people found this review helpful.
April 25, 2011
This is the best little helper you can purchase for cleaning your tanks , I am a fanatic on keeping them clean ! I even pour a little bleach in them and let sit for a few hours ( hasnt hurt anything yet 04 model ) ...When you are pulling you r camper or driving your motorhome ,keep some clean water in the black tank and poiur a bag of ice in ,the sloshing around helps clean the tanks and the sensors!!! Happy RVing!
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By

Very Good Product BUT....


6 out of 11 people found this review helpful.
March 15, 2011
I have had this product for about 5 years now and it has worked great all these years. My only complaint is I never know how long to leave the hose running to fill the tank up. Do people go inside and check their gauge to see the water level? Not sure. Advice? Also, I just went to use it last weekend and evidently the seal between the two parts (held together by bolts) has dry rotted because the water was gushing out between the two parts. But I guess after 5 years of use I can't complain. I just wish I could buy a seal vs. a whole new unit.
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By

Better than a black water flush!


4 out of 9 people found this review helpful.
November 12, 2010
I used this product for years on our previous RV. It performed exceptionally well for all those years, but it did take a little bit of time before leaving to insure that the black water tank was flushed out really well. The RV we purchased several months ago came with a Black Water Flush inlet installed. I assumed this would adequately replace the need for the Flush King. Well, I was wrong. On a recent trip after just a short time of use, our black water tank was already showing 3/4 full. I drained the tank and used the black water flush several times, but could not get it to indicate below 1/2 full. At that point I decided to attach the Flush King and see if it would make a difference and boy did it ever. It released a lot of obviously trapped waste material and after just a few back flushes everything was back to normal and the water was crystal clear. I strongly recommend to everyone who owns an RV to used an adequate amount of water during flushes and to consider having one of these. It's simple and straight forward to use on both black and gray water tanks. Great piece of engineering!!!
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By

Better than a black water flush!


1 out of 1 people found this review helpful.
November 12, 2010
I used this product for years on our previous RV. It performed exceptionally well for all those years, but it did take a little bit of time before leaving to insure that the black water tank was flushed out really well. The RV we purchased several months ago came with a Black Water Flush inlet installed. I assumed this would adequately replace the need for the Flush King. Well, I was wrong. On a recent trip after just a short time of use, our black water tank was already showing 3/4 full. I drained the tank and used the black water flush several times, but could not get it to indicate below 1/2 full. At that point I decided to attach the Flush King and see if it would make a difference and boy did it ever. It released a lot of obviously trapped waste material and after just a few back flushes everything was back to normal and the water was crystal clear. I strongly recommend to veryone who owns an RV to used an adequate amount of water during flushes and to consider having one of these. It's simple and straight forward to use on both black and gray water tanks. Great piece of engineering!!!
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By

Must have.


4 out of 10 people found this review helpful.
November 06, 2010
This is one of those products that should be a must for everyone. I use it on every trip and flush it 3-4 times to make sure its clean between trips since it sits for a month at a time. Easy to use. I have had mine now for a couple of years and have not had anything break off. Strangly enough we have given these as weird gifts and everyone we have likes it.
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By

Great Product!


5 out of 10 people found this review helpful.
October 08, 2010
We were having what we thought was just a clog in our sewer line and that this product would help. Let me tell you it did and then some!! We always thought we were doing a thorough cleaning of our tanks each time we camp, boy did the Flush King shows us we weren't!!! It went way beyond what we expected it to do and now we would not do without it!!
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By

Poor Bayonet Connectors


1 out of 2 people found this review helpful.
September 15, 2010
I love how this cleans out the black tank. I try to check out the day after the majority of people leave so I have plenty of time at the dump station to backflush. My only problem with this product is the plastic bayonet connectors breaking. This seems to be THE common complaint of this product. I wonder why the company doesn't redesign that part? Just a side note: my sensors still don't work. Sigh.
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By

Works very good


6 out of 14 people found this review helpful.
August 23, 2010
Well worth the money. This device did just what it claims to do which is rare in RV equipment circles. I'd recommend it to anyone whose RV does not have a built in flush system. I'd have given it 5 stars however the water hose fitting connector on mine loosened up and needed to be tightened. Seems like that connection could be designed a bit better but really a very minor issue.
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By

Very effective


7 out of 12 people found this review helpful.
July 21, 2010
I am very pleased with this product! Just be careful not to overfill the tank! I have had one close call, but it works very well!!
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By

My tank was dirty now it's clean


7 out of 12 people found this review helpful.
July 02, 2010
We purchased a used 5th wheel that didn't have the tanks cleaned. I've used the flush king twice now and the tank is completely clean. The unit is very easy to use and durable. I would recommend this to anyone with a camper.
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By

Works great!


9 out of 16 people found this review helpful.
June 12, 2010
After reading all the reviews about this product thought I would give it a try. Been using it for months now and found this product really makes a difference. You do need to be cautious when putting it on. Just like anything made of plastic you can break the teeth off. My brother saw how well it worked and got one for him. Easy to use. I allow plenty of time in the morning before leaving campground to clean tank out good. Don't want to be rude at the dump station. No problems with sensors showing partially full.
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By

I have read the reviews


8 out of 14 people found this review helpful.
May 25, 2010
I read the reviews, was very when careful attaching flush king to the sewer pipe. It worked very well. I was impressed with how clean I thought my tank was. I agree that the plastic bayonet attachments are made from inferior plastic. The plastic is hard and unforgiving, it won't be long before the prongs snaps off. For now it works well and I am happy. Hopefully, the manufacturers will read the complaints and will design an improved product.
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By

Great tool plastic lugs not durable


4 out of 8 people found this review helpful.
November 27, 2009
I use these on two campers and it functions great with one exception. the plastic lugs where you twist on to rv drain break off. i just had two break off my last flush king. please recommend to manufacturer that they reconsider the materials they use for this.
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By

You would not believe what is left in your Black tank when you think it is empty!


4 out of 8 people found this review helpful.
November 18, 2009
So you empty your black tank after a nice weekend of camping, and after the alotted 10 min of the valve open you close the valve and proceed to clean up. Only after you buy the Flush King (Dookiemaster 3000 as named by my wife) and fill your black tank back up with water do you realize how much residue is truly left in there. I must say I was pretty amazed how much leftovers came out. After using it 4 or 5 times there was a huge difference in color and odor too. I would recommend this item to anyone...so buy one now!
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By

Works exactly as advertised!


19 out of 42 people found this review helpful.
August 24, 2009
I purchased the Flush King and used it week before last. For about two years I have tried various solutions and tools get my black tank completely empty and to get my meter to register it as empty. The wand seemed to be the answer at first but it is highly dependant on the water pressure you can deliver to it. It is also quite inconvenient and messy to drag the hose in through the camper. I bought the Flush King and used it according to the instructions. Once I figured out how to determine when I had added enough water into the tank, it worked exactly as prescribed. The tank was completely emptied and my meter was reset to "empty". I will be using this tool on a regular basis from now on.
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By

Great Product


18 out of 35 people found this review helpful.
August 18, 2009
We have a 2001 Cameo by Carriage. We had a clog in the gray water tank. the Flush King worked as advertised. The clog is gone and the tank is flushed clean. Well worth the money. Get one!
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By

Good product


17 out of 33 people found this review helpful.
July 21, 2009
It works exactly as advertised and does a great job of cleaning out your tank.
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By

WONDERFUL!


15 out of 34 people found this review helpful.
July 09, 2009
I bought one after seeing my brother-in-law use a similar product. The FK works much better than other products, though. Very happy - use it everytime we take our '04 TT out.
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By

Great Product


21 out of 39 people found this review helpful.
June 22, 2009
If you think your black water tank is clean try this and you'll be surprised at the sludge that you flush out. Well worth the money!
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By

outstanding


17 out of 36 people found this review helpful.
June 03, 2009
If you have a holding tank then you need this item. I would drain my tanks then check their level and I would get readings saying I had 1/2 to 1/3 of a tank remaining. The lights would eventually give me a reading of EMPTY. I felt that my tanks wern't draining completely. After using the Flush King it proved to me that my tanks when empty were not really empty. I ended up flushing my tanks maybe 6 to 8 times before I had clear water coming out. The best part other then knowing my tanks are clean and empty, is no messy clean up.
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By

Two words....


25 out of 43 people found this review helpful.
May 20, 2009
OUT-STANDING!!!
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By

Great Addition


27 out of 49 people found this review helpful.
April 18, 2009
The Flush King is money well spent. I purchased it after I started noticing my tanks were not draining completely, at least according to my gauges inside. After using the Flush King I have had no problems getting the tanks flushed out completely. It usually takes four or five times of backfilling and flushing.... especially on the black tank... but the extra time it takes waiting and draining over and over a few times is worth keeping the system clean and the inside of my RV odorless. I highly recommend this item to anyone who doesn't want to spend the extra money to get a permanent tank rinser installed... this gadget does the job and at much less the cost.
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Don't Walk away while Flush King is Back Filling!


25 out of 48 people found this review helpful.
March 23, 2009
In the time it takes to disconnect a weight distribution hitch your black tank on a 26' TT will be full and headed up your stink pipe! Works great, if you leave it on long enough you will get your rubber roof clean too, well eventually.
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Love It..


26 out of 49 people found this review helpful.
November 30, 2008
This unit is very easy to use. I was always having problems with the sending units on my tanks. It took about 15 flushes on the black water tank until the water ran clear. Now I have no problems with the sending units. I have recommended this to all of my friends for it's effectiveness and ease of use.
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Is your holding tank clean?


32 out of 52 people found this review helpful.
November 03, 2008
I have a toy hauler that is two years old . I have owned it for just over a year. the gray water has always drained slow . When I saw the Flush King on sale I decided to give it a try. I can't say if it helped the gray water but when I did the black water the crud just kept coming. It took four times flushing before the large crud stopped flowing, then three more times before the water appeared clear as it flowed thru the transparent elbow.I have used a wand ,in the past, for the black water.With the large quantity of crud that came out using the Flush King my guess is I wasn't using the wand correctly or it doesn't do the job. I feel the Flush King was worth the price.
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I got parts for my Flush King


20 out of 93 people found this review helpful.
October 04, 2008
This is really a great product, just like everyone said! I called the number on the label of the product and the man that I spoke to was very friendly and helpful. I had a replacement part in just a couple of days. I really need to pay attention to the warning about having the Flush King valve open or the valve from the black or gray water as too much pressure will cause the hooks to break on the clear plastic. I don't want to do without this great tool and it's well worth the price. In fact, the cheaper product can't possibly put water back into the tank. Anyone that knows anything about gravity will understand that the only thing that will get clean --- is the sewer hose itself!
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Phoenomal product!


17 out of 27 people found this review helpful.
August 21, 2008
Use the Flush King just once and your tank will be practically factory fresh! You'll be amazed with all the junk it manages to pull out! Outstanding!!!
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All That!!!!


18 out of 39 people found this review helpful.
August 04, 2008
I bought this after reading all the great reviews. I have to add my 2 thumbs up. I have only used it once so far,(at a campground) although I was only able to back flush about 4 times due to time constraints, but I was simply amazed. I have 2 black tanks in my 5'er, one is easy to get clean with the built in internal sprayer, but the other, I can look down into the toilet and see a lot of residue every time. The angle of the tank itself and the angle (or lack of any angle at all) where I dump makes it next to impossible to get it all out, no matter how many times I refill and drain. I am a clean tank fanatic, after seeing what can happen when I helped out a friend, when they aren't taken care of (YUCK YUCK YUCK). But with the Flush King I am totally confident I will be able to get them 100% clean. My husband is installing our own dump at home, and I will then, with my FK, be able to finally have the 100%clean tanks that I have always tried to have... I will have no problem recommending this product to my friends......
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Best purchase made for my R.V.!!!


34 out of 63 people found this review helpful.
June 25, 2008
After several years of fighting with my black tank and black tank sensor, I decided to finally do something about it. Purchased the Flush King after reading all the reviews on several sites. I use my travel trailer about 2 months every year at one spot on the central coast of California every summer. We use what seems to be a truckload of toilet paper during that time and it seems to be accumulating in the black tank as my sensor has not recorded anything less than 2/3 full in three years. I hooked up the Flush King, and after about 7 fills and back flushes... sensor shows 0!!!! Something I did that may make a difference for some of you... I connected a hose splitter to the water source and hooked one line to water inlet to trailer (white hose) and one directly to the Flush King (green hose). When I want to empty the sewer tanks, I don't have to disconnect the water hoses, I just switch the splitter over and it's done. Don't even get my hands wet!! Buy one, you won't be disappointed.
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Oh yeah! The Flush King


31 out of 59 people found this review helpful.
June 22, 2008
My husband loves this product. Ok, well as much as you can love something that has to do with sewer. He loves the fact that you can fill the tanks back up with clean water to make sure it all comes out. The clear tube helps alot. The first time we used it everyone in our group stood around and watched like it was an exhibit of some kind. So funny!
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Everything it said it was


48 out of 77 people found this review helpful.
May 26, 2008
I used the flush king for the first time this memorial day weekend. At first I thought $46 to be a little high. Not now, that device worked so well. I will not go any where with out it. All this time I thought I was doing a good job cleaning my tanks. I had to rethink that after using the flush king. It took me several times of back flushing it but , I finally can say I have a clean black tank. I highly recommened buying this product. It is worth every penny.
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Works Great!!!


52 out of 88 people found this review helpful.
May 20, 2008
I used my new flush king for the 1st time on the weekend, it it did just what it was sapposed to. I flushed my friends tanks, after he had problems with his sensors reading at 2/3 full all the time. after 3 flushes his sensors read zero. i would certainly recomend this product for anybody. The only thing was that it leaked fresh water at the entry point, after putting a little teflon tape on the threads, it stopped.
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It's GOOD to be KING....


46 out of 89 people found this review helpful.
May 19, 2008
Let's face it. This may not be the most pleasant part of RVing! But if you make it simple to do with very little extra work, and then back it up with the results we all want, then you've got a winner! I looked at a lot of different holding tank cleaning products before deciding on this one, but it seemed to make so much sense and was so easy to use, that I knew I wanted one. I bought it on sale and have never looked back. It's worth every penny and it's very well made and sturdy. I'd recommend this to anyone. And I have! Try it and you'll be pleased.
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Works Great


73 out of 113 people found this review helpful.
April 18, 2008
I've used Flush King for two years, and it's a great product. Don't get in a rush to clear your Black water tank - It takes about 10 back flushes (30 min) to get the tank perfectly clean. I use a stopwatch (3 1/2 min) to completely fill the tank and 1/2 of the toilet.
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Great Addition


83 out of 126 people found this review helpful.
March 30, 2008
This is a great addition and a must. My sensors were not working properly so I purchased this item. It took about 10 back flushes to get everything clean and working properly again. I'll never leave home without it.
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Flush King - Your first and last solution to cleaning and clearing holding tanks.


250 out of 420 people found this review helpful.
January 13, 2008
We purchased our 5th wheel travel trailer in 1999 and were doing everything wrong when it came to the holding tanks. We used standard toilet paper and had the gate opened while parked at a permanent site for over seven years. During the past year we started encountering problems with the black water holding tank. It appeared to be clogged and was very slow to drain. I tried a number of things from drain snakes, wands, bleach, and chemicals. Nothing appeared to work very well. I came across the Flush King and decided to give it a try. It worked great! I ended up cycling through the backfill and drain six times before it appeared to be clean and clog free. I ran through another couple of cycles of backfilling and then draining just to be sure. I then did the same for the gray tanks as a preventive measure. I would recommend having someone monitor the fill gauge in order to save time running back and forth between the drain and the gauge. It cleared all of the debris from the tanks and the level indicator works like new. I would recommend the Flush King to all RV owners.
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Flush king RV Reverse Flush Valve


359 out of 735 people found this review helpful.
November 05, 2007
This is one great product. I purchased this last fall on sale and had not use it until this fall. I was having problems with my black water sensor probes, so I used the TST Probe Cleaner as directed and back flushed the tank with this Flush King, and the sensors work good as new. I highly recommend both products, and will use them from now on.
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WHAT A GREAT PRODUCT


336 out of 711 people found this review helpful.
October 17, 2007
WE USED THE FLUSH KING THIS WEEKEND FOR THE FIRST TIME AND TO OUR GREAT SURPRISE IT WORKS LIKE A CHAMP. IT IS TRULY THE FIRST TIME MY LEVELS WENT TO (0). I WOULD SUGGEST THIS ITEM TO EVERYONE AND BE PATIENT WHEN USING IT.
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can't say enough


413 out of 851 people found this review helpful.
October 03, 2007
I installed the Tornato on all of our previous RV's and alwys felt it was doing it's job, however with the King Flush I know the tank is completly emptied. I have and would recommend to everyone as a must have item. It is well worth the cost.
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WOW!! THIS IS GREAT!!!


499 out of 981 people found this review helpful.
August 31, 2007
We purchased this after having the Tornato. We sold the RV with the Tornato and bought a 5th wheel that had the sealed under belly. I bought the King Flush instead to try it out. I highly recommend this produce. We found that it is not only great with the black water, but works wonders on the grey and galley water tanks as well. This is a great investment for all to have.
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flush king


576 out of 1091 people found this review helpful.
August 26, 2007
I recently bought a flush king at regular price and have only used it once. but i was amazed at how much it removed waste from my tanks. i had previously had been using a wand and hose that was really a mess. this is so easy to use and everything is done from the outside of my camper. this product is great!
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IT Truely Does What IT Says!!! Wonderful!!!!


721 out of 1411 people found this review helpful.
July 11, 2007
We are new at the Rv thing and enjoying it very much. We had been having problems with our sensors as I hear every one else does. We knew they were empty but kept showing full. I got on line looking for something and found this and all of the wonderful reviews. It came before we left for our 4th of July Trip to the beach,We took it with us. Our friends actually tried it first and man,you can not believe how much well ....stuff, is actually still in there. The key thing as all reviews state is you have to have plenty of time. You don't want to be in a hurry. We flushed it about 15 times before it was totally clear and we are talking about a new RV that had only been used 4 times. so yes I do believe this is a MUST for all RV's.. We will not leave home with out it. Our friends came home and ordered one also. The only thing you lose on this is a little bit of time, but time well used!!!!! I would recommand this to any one..........
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Works Great!!


822 out of 1565 people found this review helpful.
June 29, 2007
I have used the Flush King for two years now and it does an outstanding job of cleaning out my holding tanks. It takes several flushes to get all of the debris out of the tank so be prepared to spend 20 - 30 minutes as the other review states, but when you are finished they are truly clean. Earlier this year I was even able to help a fellow camper clear his blackwater tank when it was completely backed up. When I first used mine it leaked around the valve. I found that one of the seals had a cut in the edge. I called the customer service number on the sticker and they had new seals out to me in just a few days. I replaced the seals and have not had another problem since. This is a product that no camper should be without!
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Look No Further


719 out of 1403 people found this review helpful.
June 25, 2007
Through many years of camping and trying to get our tanks clean, never has a product been so easy to use and so effective. It truly does flush your black and gray tanks without any tank modification as other units may require. Simple to use, quick and effective....money well spent!
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By

Flush King


651 out of 1335 people found this review helpful.
June 16, 2007
I've been using the Flush King for two years. It works GREAT. Don't be in a rush to get the tank clean, it takes al least 10 flushes to get the tank perfectly clear of matter. (approximately 30 minutes). It takes me 3 minutes to fill the tank and half of the toilet for a good flush.
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Outstanding


693 out of 1445 people found this review helpful.
June 10, 2007
This product is AWESOME!!! If you really want to know that your black tank is clean, then this product true. If you just purchased a used RV this product is what you MUST have. This product will allow you to ensure ALL of your tanks are cleaned.
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Great product


712 out of 1441 people found this review helpful.
May 29, 2007
I had use this product about a year now and it will let you know when your tanks are clean and as mention before it may take 3 or more times per tank to get clean, but you must have a garden hose water supply hook up at dump station to use this which all the state parks here that I have been to due, but alot of the county parks don't have such hook up and there' a little rubber (3/8's) tube on the end and would be more work to take apart to make it work then to flush it better at a later time.
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Great Product


802 out of 1504 people found this review helpful.
May 29, 2007
I have a new trailer we that used once before using the flush king.I could not believe how much more junk came out of the black tank just after dumping for the second time! Clear plastic lets you know that tank is clear. Highly recomend this product.
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Best invention


758 out of 1569 people found this review helpful.
May 29, 2007
We took our maiden voyage with our new to us trailer. We purchased the Flush King based on all the great reviews. We had no idea how the previous owners took care of the black tank so we weren't sure what we were getting into the first time we used this product. We did everything by the book as far as waiting to dump the tank until it was 2/3rds full and used RV toilet paper and so on. We flushed our tank a total of 5 times with the Flush King. The first 3 flushes still showed toilet paper and other matter. We were shocked to find out that all this stuff was still sitting in our tank after our first dumping of the tank!! Our friends who were camping with us decided he should purchase one after seeing our results! Do not hesitate to purchase this product, you will not regret it and you will have a clean tank!! It was very easy to hook up and operate as well.
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You won't be disappointed


766 out of 1559 people found this review helpful.
April 25, 2007
Flush King takes the guess work out of knowing if your tanks are really clean. Compared to using a wand this is a no brainer. My eleven year old son looks forward to back flushing our black/gray water tanks at the end of a camping trip. That alone is worth the price to purchase a unit. Would not hesitate to recommend this to anyone, even if it is not on sale.
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Clean as a whistle


899 out of 1678 people found this review helpful.
April 17, 2007
We purchased this product based on all the reviews we read about it. Now we want to add ours. Used it first time in FL in Feb. We could not believe what came out of our tanks. And here we have been super meticulous in thinking that we were keeping them clean. Buy this product, especially now while it is on sale. You will not regret it. At first we thought that it would not work on our Winnebago, but after working with it for a little while, it attached and has been just great. So, don't give up too soon and return it.
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awesome flush king


790 out of 1551 people found this review helpful.
April 16, 2007
I used the flush king a couple weeks ago for the first time and loved the way it cleaned all the tanks out . It only took a couple times and the tanks where cleaned out. I would recommend it to anyone to use. There is no real mess and it is easy to used. I told a friend and they are buying one now too. If I would need another one in the future I would buy it!!!!! Great product to have around and better then the wand.
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Excellent Product


722 out of 1488 people found this review helpful.
April 10, 2007
Used Flush King for the first time Easter 2007. Product worked excellent, I was surprised how much excess waste remains in the black water tank after draining. Be prepared to take 20-30 minutes flushing the tank several times. However, the results are well worth the wait. Make sure you have a good quality water hose to feed water to the Flush King so your tank will fill faster for flushing. I would highly recommend this product.
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excellent product


767 out of 1526 people found this review helpful.
February 21, 2007
We purchased this product 1 year ago. Our black tank was reading full after we dumped. We tried the wand, and we would also just fill tank while holding toilet valve open. It would not get the tank clean. The Flush King is great. The 1st time we used it ,we needed to flush 6 or 7 times, but we finally got clean water and the tank sensors work 100%. No more wondering if the tank is clean and it is very easy to use. My wife just lets me know when she see's the water level in the toilet and I drain the tank. After years of blaming sensors and really not knowing the condition of our black tank, the guessing is behind us. GREAT PRODUCT.
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Superb Results


814 out of 1630 people found this review helpful.
February 11, 2007
I have owned my 5er for just over a year and have followed all flushing procedures as recommended by the manufacturer and the dealer religiously including the built in tank flusher, and have also used the down the potty hole flushing wand when the black tank sensor was not working properly. Nothing seemed to clear up the sensor problem. I recently experienced a clogged drain line on my black holding tank and was mulling over methods to clear out the blockage. I had recently purchased a flushking and decided to try this first. Wow! This thing works! Not only did it immediately clear out the stoppage but after several repeated flushings (lots of waste still in the flush water) I finally began to see clear water running from the drain line. I also found my black tank sensor was now working again. Yes, it is probably wise to have a second person monitor the process to avoid the "brown geyser", but by exercising due care, you should be pleased with the results. This is the best device I have found for flushing the holding tanks. Being a retired airdale, I, of course, would recommend a "checklist" to guard against embarrassment, and messy errors!
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Will never be without one!


10 out of 11 people found this review helpful.
January 21, 2007
Have never EVER had one bit of black tank odor since we added the Flush King,. We use it every time we empty black tank. It is a must to use properly. Flush until all water is clear of color and debris. Saves lots on chemicals and candles. You still use chemical but not just to cover odor. Wish we would have found these years and years ago
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Reviews were great had to try it!


734 out of 1452 people found this review helpful.
January 05, 2007
I purchased this product and all I have to say is wow! seeing is believing, the Flush King made flushing my system easy, if you do not own this product you need to buy it. :)
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Very Nice


753 out of 1450 people found this review helpful.
January 02, 2007
We're new to trailer camping and the first time out we used a wand to clean the black water tank. I was outside working the valve and my wife was inside using the wand. From that one experience, I knew we had to figure out something different in order to preserve marital harmony when it came time to dump. So, I purchased the Flush King. Today was our fist time using it and wow, it really made it easy. Used it to flush out the black tank about 4 or 5 times and then used it to backflush the gray tank once. How could it be easier? Pull the Flush King valve open and open the black water valve. When empty, close the Flush King valve and turn on the water valve to backfill. Listen for wife to holler out the window that the black water tank level shows full. Repeat above steps until water flows clean. Put the toy away while anxiously awaiting the next time you get to play "dump". We were really impressed. It was kind of fun to see the water finally come clean from the black tank. My wife's back didn't hurt from using the wand and we were satisfied that we really got a good flushing job done. I'd recommend the Flush King to anyone!
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Highly Recommend


690 out of 1433 people found this review helpful.
December 05, 2006
Worked Flawlessly, A Must for all RV's. Cleaned and Flushed Our tanks Quick and Easy, By Far The Best and Easiest to Use!
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What a device .. and it works too !!


663 out of 1266 people found this review helpful.
October 15, 2006
Bought the Flush King several months ago and used it for the first time camping this past weekend. After thinking my black water tank was cleaned out I hooked this thing up and used it. My wife and I were truley amazed and what was left inside the tanks from previous camping trips !!! A MUST BY FOR TT and RV OWNERS alike .. I highly recomend this product !
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FlushKing works great


658 out of 1239 people found this review helpful.
October 02, 2006
Bought the flushking after reading all the good reviews. It does the job. Like one person said you can spend a lot of time watching it was out your black tank. Won't leave home without it. My tt has two 45 degree bends and it works.
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Great product


577 out of 1158 people found this review helpful.
September 25, 2006
I have used the Flush King for more than 6 months. It is easy to use and really flushes out the tanks. No muss, no fuss. I wouldn't leave home without it!
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saved us money


608 out of 1156 people found this review helpful.
September 24, 2006
We are new to RVing and did not have good experiences with dumping our black waste. We watched a dvd on RVing and this was recommended so we bought it. It made a world of difference for us. It makes dumping so much easier cause you can actually see when the line is clean. And for us it pointed out that the valves were reversed on our grey and black water and that is why we were having so much trouble when we dumped our black tank. It was actually the gray tank we dumped. If we hadn't been able to see what was coming out of the line we might not have ever figured that out till our tank was ruined.
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This is a Great Product


556 out of 1042 people found this review helpful.
September 02, 2006
I bought this product after a friend at a campsite showed me his. What an invention!!! I dumped my tank like I normally would and then rinsed the hose out by dumping the gray water tank. I borrowed his and filled up my tank with water and you wouldn't believe how much extra stuff came out!! So I bought one. First trip out with it after I had totally cleaned my tank (or so I thougtht) I tried to clean and flush the dark water tank and I filled it and dumped it about 20 times and each time more and more extra stuff came out until the water was very clean. A must purchase, in my opinion.!!!!!
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Wow..The best thing since sliced cheese.


426 out of 838 people found this review helpful.
June 14, 2006
The other reviews on this site convinced me to buy the Flush King. Before I bought it I was using one of those wands to clean the black water tank and I was getting a terrible smell everytime we flushed. I hooked it up and started to clean the tank and WOW you would not believe the stuff it gets out of that tank that you didn't know was there. I flushed my tank 6 or 7 times before I finally stopped seeing TP going through the pipe. Now it has been a week since I cleaned the tank and the temps here have been around 100 degrees every day. I went out to the trailer last night and opened the toilet and there is NO SMELL! I was thrilled to say the least. You will not regret buying this thing!
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Awesome Flush


427 out of 753 people found this review helpful.
June 12, 2006
This thing is amazing. We had so much fun with it, we just sat up our lawn chairs by the sewer hose to watch all that it brought out of the tank. I have a brand new 2006 model and was so amazed at what came out of there. I may have left some debris in there had it not been for the Flush King. It is worth every penny! Be sure to use it on the gray tank too. Food gets stuck in there from washing dishes. Although the Flush King is faster than refilling from inside the trailer, be sure to allow plenty of time because you will want to flush your tank 5-7 times before you are satisfied it is fully cleaned. The Flush King takes the guess work out of determining if its clean....You'll know!
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An Awesome Product


417 out of 790 people found this review helpful.
June 12, 2006
This thing is worth every penny (unlike some of the other stuff CW sells!). It ASSURES you that the tank is clean. One caveat: there is a backflow valve in the hose coupler that may need to be "prodded" to work the first time you use this item, but it's an easy "prod" and this thing works like a champ!
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Great Product


363 out of 698 people found this review helpful.
June 01, 2006
I share all of the positive comments that everyone else has offered. Howver, the configuration of your sewer outlet could make it difficult to attach the fitting. My RV has the outlet inside a storage compartment , and the sill of the compartment door almost prevented me from attaching the valve. This situation is compounded by the built-in bend in the fitting where the water line connects. I was able to rotate it 90 degrees and just make the connection. The good news is that installing it turned 90 degrees does not hinder the operation.
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By

Converted Skeptic!


373 out of 728 people found this review helpful.
May 30, 2006
After reading all of the reviews it is hard to believe a product can live up to the stellar and rave ratings, well I have to tell you this thing is awesome! I just returned from a two day weekend, first time ever having to empty waste tank, we only used it three times or so for #2..... I continually flushed several times, filling it up and then using it is a turbo jet to really clean it. The clumps of stuff that that kept coming out from previous owner was incredible! Gross I know, but it is thoroughly cleaned and future clean outs will be a breeze. The best money ever spent!
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Great Product!


295 out of 605 people found this review helpful.
May 04, 2006
I totally agree with all of the great reviews. We bought our 5th wheel used. Thought that emptying the black water tank and using the wand would completely clean out the tank -- -- WRONG!! Bought the Flush King - first time I used it it took 6 or 7 backflushes before the water was clear. Buy it! You won't be dissapointed!
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I'm civilized again!!


267 out of 523 people found this review helpful.
May 01, 2006
I've been full-timing for about a year. Recently, I spent three months in a small park in northern New Mexico in weather cold enough to prohibit the permanent connection of a water hose. I had to fill my fresh water tank every day to be functional. When water is at a premium and you need to shower every morning for work, you watch what you use everywhere else. I began to notice recently that there was a problem with dumping the black tank ~ it wouldn't. After moving 10 miles away, I hoped the movement from the trip would loosen things, but there was no change. In no time, I couldn't use anything associated with water in the rig because of the clog. I did some research and decided on the Flush King! I'm so smart!! This brilliant invention broke up and then removed everything in the tank that was causing the problem, all in about 10 minutes! It is simple and logical to use, there is absolutely no mess, and there is a perverse amusement sitting there watching it work! I now know what I giving as an "RV-Warming" gift to any of my friends with sense enough to get out here! Thanks for a GREAT product!!!
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The Flush King is AWESOME!!!


271 out of 536 people found this review helpful.
April 27, 2006
The Flush King made my day. My monitor for the black water tank was stuck on the second level. I tried the wand trick but to no avail. I was not looking forward to meshing with the black water tank. Until I read some information about the Flush King. The write ups and the reviews I read about the Flush King were all positive.So I decided to make a purchase. It is a purchase I will never regret. For as long as I own an RV, I will always have a Flush King.It is so simply to use,I could not beleive it. I think I'm going to take my wand and throw it in the trash.Ha!! It's money well spent and no hassle.
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By

Rocket Science


246 out of 497 people found this review helpful.
March 07, 2006
At first I was turning on the water with the big valves closed and water squirted everywhere, oops. So be sure to have at least one big valve open first. Also to be safe I am using a special grey colored hose just for sewer use but I feel I need an additional backflow preventer at the faucet end too, I will be looking for this, I wish FlushKing offered it. Otherwise It's pretty quick and efficient. I feel it locks in place securely. Caution when my tank was partially frozen the waste water came up my sink and spilled all over my carpet within 90 seconds. One drawback of not being inside using a wand.
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Amazing, but true!


288 out of 538 people found this review helpful.
March 04, 2006
Prior to purchasing this product, my wife and I had to laugh about all the enthusiastic and glowing reviews on this site - I'd never seen something create such a stir in its customers. But using it for the first time to re-winterize our RV after a week in the infield at the Daytona 500 I had to smile as I remembered everyone’s comments about the product and had to acknowledge that they were right. The highlights: -Quality throughout. From the type of plastic used, to the mounts, to the valves. All seals are perfect, a level of quality I didn't expect for an occasional use product. -Excellent Design. Using it is so easy that you'd think this is a "No-brainer" process unless you'd attempted it with other poorly designed products in the past. Someone knew what they were doing in the creation of this product. -Great Value. I have to admit that I considered the lower cost alternatives prior to selecting the Flush King. But the added features and extended life that this quality product will offer proved to us that it's the best value of the lot. -Entertainment. Another reviewer put it best when commenting about the almost embarrassing fascination that watching this product work brought to them. They're right, and I'll leave it at that. Bottom line is that this is one of the most satisfying purchases we've ever made. It exceeded all expectations and is a great value in the features and convenience it delivers.
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Every New RV'er Should Have One


218 out of 451 people found this review helpful.
February 22, 2006
I am new to RVing so I bought one after I read some of the review's on it and I think it is was the best tool I could have bought for my first time out. I was a little worried about cleaning my tanks out, but with the flush king valve I have no doubt that my tanks are clean. Everyone should have one. I never leave home without it.
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By

The reviews are accurate


241 out of 458 people found this review helpful.
February 09, 2006
Everything everyone has said is right about this product. It really cleans your tanks. And kids love to watch the "gunk" the back flushing reveals. Fantastic product, especially if you can buy on sale.
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By

Now their clean


263 out of 483 people found this review helpful.
December 23, 2005
I always thought I was flushing out my tanks. With the help of the Flush King I now know better. Now we can see whats going on and just how much we missed by not back flushing. We will keep one of these from now on. Great Product !!
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By

Flush King


248 out of 431 people found this review helpful.
November 29, 2005
This product works exactly as advertised. I don't know how I got by without it before. No more dragging a hose throught the coach and down the toilet. The amount of residual waste left in the tank after dumping is amazing. I am comfortable now knowing that my holding tank is as clean as new. I highly recommend this to anyone still sloshing around with a hose inside their RV or sticking one of those wands down the pipe.
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These tanks are CLEAN!!!!!!!!!!


243 out of 447 people found this review helpful.
October 31, 2005
This is the greatest thing since sliced bread. It brings my hose connection closer to the right spot for the hole in the water tank bin than the other clear elbow. My tanks have a leak that I keep trying to get around to fixing but just haven’t had the time. With the Flush King’s extra valve I don’t have to worry about nasty stuff splashing on me as I try to hook up the hose line. It’s all closed behind the Flush King and sealed. I washed the black tank out by filling it almost to the top and then using the washout tool from the inside to bust loose any leftovers. Whoosh the whole tank gets a cleanout. I love the new technique I learned to clean the tanks. I back washed the gray tank too just because it’s so much fun! My tanks are cleaner than I’m sure they’ve been for years.
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By

Best Money You'll Ever Spend on Your RV


217 out of 423 people found this review helpful.
October 24, 2005
My wife and I recently purchased a used travel trailer. The galley tank didn't drain well and the level guages on the grey and black water tanks weren't acurate. After seeing the flush king in your catalog we decided to try one. The only thing i can say after using it is WOW! The flush king is so easy to use and with no mess at all. The flush king is a real bargain. I would highly recommend it.
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By

Flush King Is Awesome!!


182 out of 330 people found this review helpful.
October 01, 2005
We are very happy with the performance of this product. First of all, there is NO INSTALLATION!! You simple attach it to your sewer line when you are ready to dump your tanks. Then you add a water hose to the Flush King. After dumping the tanks, you simply close the valve and turn on the water to back flush the tanks. This item is well worth the money!!
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By

Outstanding Item


187 out of 346 people found this review helpful.
September 21, 2005
I purchased the Flush King about 1 year ago. It is really an amazing tool. I would not be with out it.
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By

Best money spent on RV gear


182 out of 320 people found this review helpful.
September 17, 2005
This is without a doubt the best item I have purchased for my RV. I have been using the flush King for 3 years now. It is amazing at how much "gunk" is left in your tank after dumping. I reccomend this be the first thing you buy for your RV right after a good sewer hose and connectors.
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By

Works Great


163 out of 287 people found this review helpful.
August 12, 2005
I used it the first time today and it definately works as advertised. No more hose through the bathroom window. Three minutes to fill the black water tank. Naturally that depends on water pressure and tank capacity. It took three flushes to get a clear water dump. Now my guages are accurate. Product image shows a white hose connected to the water supply. Not a good idea. A white hose is normally for drinking water. After using a white hose to the black water tank I would not want to use it for drinking water.
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By

Unbelievable - Mush have product!


193 out of 305 people found this review helpful.
August 06, 2005
This product is incredible!! Our previous travel trailer was plagued by the foul smell in the black tank all last summer. No matter what I tried, it never seemed to go away completely. This year, we bought a new 5th wheel, and it seemed to drain pretty well. So I decided to give this one a shot before investing money into any new cleaning tools. After about 4 times of camping, it started to get a bit stinky. I quickly discovered that the pipe just below the toilet was an elbow. This meant that a wand cleaner would no longer do the trick. So I went out and bought the Flush King. The first time I used it, I drained the tank as usual, back filled with the Flush King and drained again... WOW... I could not believe what the second flush produced from my tank!! How disgusting!!! I thought a tank would empty out fairly well with just a few extra flushed from the toilet - but I was sadly mistaken!!! It took 4 more flushes to get the water coming out of the tank to be clear. Once I was finished, there was no more smell and the sensors were clean!! I was amazed at how quickly this product worked and how effective it was at cleaning the tank! I will never drain my tanks again without using the flush king. This is probably the best $50 I have ever spent on camping gear!! Thank, Flush King!!
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By

THIS IS GREAT!!


146 out of 250 people found this review helpful.
August 05, 2005
This Works Great, Our trailer is New & it was our 3rd time out with it & I used this. I could not believe what was left in the tank before I used this. I will never be without something like this!!!
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By

flush king


133 out of 232 people found this review helpful.
July 24, 2005
The flush king is the greatest product I've ever used. My black tank has never read empty since my first camping trip. After using the flush king for the 1st time, the gauge read EMPTY, and you would'nt believe the mess that came out.
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By

Bye, Bye Sticky float


138 out of 239 people found this review helpful.
July 07, 2005
We bought the Flush King this past winter and lo and behold the first time out this year our tank gauge became stuck at 1/3. We used the KING and the float is no longer sticking and the tank is cleaner than it has been in a long time. I will never dump my tanks without using this product .
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By

Flush King


131 out of 229 people found this review helpful.
June 27, 2005
I bought a Flush King late last summer and now have used it for almost a year. It is simply the best tool I have seen and used for flushing the tanks on my travel trailer. The only draw back is that in my particluar case since my trailer sets low to the ground there is not much distance for maintaining an even drop in ellavation of the sewer hose. Even with this one draw back it still works great.
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By

Fantastic


120 out of 220 people found this review helpful.
June 27, 2005
This thing is a must have... Works great!! As everyone says it flushes it all out....
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By

Works Great


96 out of 165 people found this review helpful.
June 11, 2005
Like an enema for my black tank. Amazing what came out! Seriously, this thing works really well and is very easy to use. An empty tank is not empty unless it's been flushed.
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By

The Best Purchase of the Year


107 out of 181 people found this review helpful.
May 11, 2005
Wow, this product worked great! I won't tell you exactly what came out, but my black tank has never been cleaner. The best part is that I didn't have to run a hose through the window and drip water inside the trailer. The best part of the Flush King is the clear plastic body that let me see the progress of each flushing and let me know when I was done. In my opinion, this is a must for anyone with holding tanks!!!!!!
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By

Flush King is Awesome


93 out of 143 people found this review helpful.
March 22, 2005
Finally!!! I own a 2003 Coleman Caravan that has two 90 degree bends in the black water tank drain line. You can imagine the problems I have been having trying to drain my tank. I can't tell you how long it has been since I was positive the tank was completely empty. My gauge hasn't read empty since my first outing after buying the camper new. Now, my gauge is once again reading empty and a visual inspection of the tank reveals a clean bottom without "Cling-ons" yuck!!!. Flush King is one of those products that you must add to your arsenal of RV supplies/equipment.
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By

Great Product


83 out of 113 people found this review helpful.
February 08, 2005
I bought one recently when I suspected the grey tank was not completely draining, one flush and the problem was resolved. This system achieves far better results than those wand things, far less troublesome and the clear tubing allows you to see the cleanliness of the flush/rinse status. This is very easy to use and works very effectively. This is an absolute must have for anyone owning an RV.
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By

Good product!


46 out of 55 people found this review helpful.
November 30, 2004
This product worked great!! Just as it was advertised. The only thing I do not like is the Flush King uses an extreme amount of water. Very easy to use, doen't leak and gets everything out.
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By

Great Product


53 out of 63 people found this review helpful.
November 28, 2004
The Flush King allows you to clean your tanks out easily. We used it for the first time this weekend and found it to be effortless. The clear sleeve allows you to see when your water is running through clean, and it is comforting to know that your tank is clean. I definitely recommend this item.
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By

This is a MUST have item!


50 out of 51 people found this review helpful.
November 17, 2004
I was unsure about buying this because of the price, and have tried several other products that claimed to be the "cure-all" for cleaning your tanks, only to feel ripped off... well, this one is worth every penny spent, if not more! (saw the negative review about only having two hooks, and that is something they must have upgraded - mine had the four hooks and did not leak) The best I had found before this was the wand thing that hooked up to the bathroom sink (no dragging hoses into trailer) - I would fill the tank several times from inside, but it took forever since the water line into the tank has a pressure regulator. With this product, you can hook up to the outside water without a regulator, and the tank will fill in only a couple of minutes! (I am going to buy an RV Water Diverter - Catalog Item # 4353, and a Grey Water Flushing Hose - Catalog Item # 19938 - that way if the tanks need flushing while at a camp site, I will not have to disconnect the trailer from the water, and yet I will still be able to bypass the pressure regulator!) Also, despite my previous efforts of filling and draining the tank several times, I was shocked at how much stuff came out after using this product! THIS IS A MUST - MUST - MUST buy item!!!!
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By

The ONLY way to flush your tank!!!!!


24 out of 26 people found this review helpful.
October 12, 2004
I had tried everything out there to eliminate the odor from our holding tank. I tried all of the chemicals and wands on this planet, NOTHING worked, until I heard of the FLUSH KING!! After using this product, I would of gladly paid 4-5 times the price!! THIS WORKS!!! Plain and simple.
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By

It does what is says it will!!!


24 out of 25 people found this review helpful.
October 11, 2004
Great product. I'm glad I finally ordered it.
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By

Great Product


26 out of 27 people found this review helpful.
October 11, 2004
I used this product recently for the first time. It was the best flush that my black water tank had ever had. I was surprised at the stuff that I got out. My tank gauge now registers empty for the first time in a year. It took repeated flushes to clean out the tank, but I am sure that with repeated use I will never have a solid build up problem again.
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By

Flush King to the rescure


28 out of 28 people found this review helpful.
September 16, 2004
After having to listen to my husband curse and carry on every weekend about how the tank would not completely empty, we decided to try this out after reading the reviews. Last weekend emptying the tank was a breeze with this and no cursing. It made for a great Sunday.
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By

The best product


22 out of 22 people found this review helpful.
September 06, 2004
This is the best product that I have bought for my camper. It is simply amazing how much stuff gets stuck in the holding tank and won't come out. The first time I used it I had to flush it 5 times just to get everything out and it was an 04 camper that had been out 10 times. I did everything that my dealer had told me when flushing and it must not have been enough. I would recommend this product to everyone.
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By

Improved...


26 out of 26 people found this review helpful.
August 21, 2004
The only previous review under 5 stars was due to device only having 2 locking points. I received one a few days ago and I'm pleased to announce it has 4 locking points. No leaks at all! I assume they made an improvement to the original product. It works great!
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By

BUY THIS PRODUCT!!


54 out of 55 people found this review helpful.
August 20, 2004
My sensor said the black water tank was 1/3 full, however, nothing was coming out. I tried the wand, but didn't care for dragging a hose into my travel trailer. So, I bought the sink adapter hose kit. It worked OK, but a friend recommended the Flush King, and WOW! I used his once, and the amount of stuff that came out was amazing! I bought one as soon as I got home. I don't just tell my friends about the Flush King, I show them! That is enough for them! They all have purchased one for themselves. It really is THAT good!
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By

Used it for the first time this weekend


25 out of 26 people found this review helpful.
August 01, 2004
It does work like it should. It was raining cats and dogs all weekend and it was very nice to be able to rinse and flush without dragging muddy hoses or feet in and out of the camper.
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By

Flush King


23 out of 25 people found this review helpful.
July 20, 2004
I bought the flush king last weekend in Myrtle Beach. My black holding tank was reading 2/3 full when empty. I was surprised how simple and easy it is to use. I was shocked at how much stuff came out. No more using the wand! I went back to camping world the next day and I bet I sold 5 or 6 just by telling everyone how great it worked.
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By

Did a great job on a tank that just wouldn't drain


23 out of 24 people found this review helpful.
July 19, 2004
I used this for the first time this weekend. I had a black water tank that would only drain a quarter of the tank. You can imagine the odor issue over time. I hooked up the Flush King and after about 20 minutes and 5 or so reverse flushes my tank is completely empty for the first time in a year. Highly recommended!
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By

The Flush King is King


30 out of 30 people found this review helpful.
July 03, 2004
I have been RVing for about 5 years now and truly enjoy the overall experience. One of the "not-so-nice" parts is, of course, dealing with the empyting and cleaning of the tanks-- particularly, the black holding tank! I have tried several products in hopes that they could alleviate the unavoidable and inevitable cleaning of the black tanks with some success. Recently, I purchased the Flush King and found it to be, by far, the best way to clean my black tank (we are a family of 5-- so you can only imagine the amount of cleaning that I have to do!). The Flush King is easy to use and with the shut-off mechanism it has I can back-fill my tanks easily and quickly until I am satisfied that they are "clean". I really recommend this product to any avid RVer who is looking for an effective, efficient, and economical "mess-free" way of cleaning their tanks.
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By

Works like a charm


23 out of 23 people found this review helpful.
July 01, 2004
This thing really works as advertised. The whole concept makes perfect sense. The device is solid and well built. No leaks. Try it and you'll wonder how you ever got along without it. I could sell mine almost every time somebody sees me use it (though I would never part with it!)
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By

Fantastic product!


27 out of 29 people found this review helpful.
June 29, 2004
Wow!! Cant believe what remains after dumping your tanks. Even the grey water tank! Very easy to use, no leaking, It just works great!! I highly recommend this item!
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By

Get one-well worth the money


22 out of 22 people found this review helpful.
June 04, 2004
Bought this and used it for the first time this past weekend.What a great product.Like others have said no more dragging in hoses to clean out.Gets all your tanks very clean.best money i have spent for my 5th wheel.Wouldn`t leave home with out it.
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By

FLUSH "KING


23 out of 24 people found this review helpful.
May 17, 2004
This thing is amazing, no more toilet paper remaining in the tank, no second guessing if the tank in empty, the clear elbow lets you see when the tank in clean, YOU HAVE TO GET ONE, THIS THING IS AWESOME!!!!!!!
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By

Wonderful product - buy it today!


27 out of 28 people found this review helpful.
May 17, 2004
This is a fantastic product. Buy one right now! The slide valve forces the water to backflush the tank - unlike the hydroflush product. Saved me this weekend - ahem, solid waste was clogging the pipe from blackwater tank - back washing a couple of times cleaned everything out!
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By

Wonderful time saver


31 out of 32 people found this review helpful.
May 04, 2004
My husband and I have always spent a lot of time cleaning out the tanks, myself with a hose drug through our trailer inside flushing out the system and him outside draining. This product is wonderful. With the clear tube you can tell when the tank is clean and it is amazingly quick. Now I wouldn't be without it!
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By

Excellent Product


94 out of 95 people found this review helpful.
March 17, 2004
This is the easiest and cleanest way to back flush your tanks. No hoses or wands inside your rig. You can actually see what you dump and you have the comfort of knowing your tanks are clean.
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By

VERY Good Product


92 out of 93 people found this review helpful.
January 12, 2004
I can get my tanks absolutely clean without going inside the trailer at all. Just pull off the dispoable gloves after I'm done and go inside to wash hands. If you're using a wand, or any other method that makes you have to bring a hose inside, get rid of it and get one of these.
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By

Buy this one!!!


108 out of 109 people found this review helpful.
January 07, 2004
I bought this for my TT as I was having clogging problems. It works great. Man, am I sick and tired of dragging a hose thru the TT to clear the toilet. This product solved that. It builds enough waster pressure to do the job. Just be sure to keep an eye on the water level. It comes up quick. Be sure to flush the tank a couple of times before you disconnect it. Buy it!
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By

Loved it


65 out of 66 people found this review helpful.
August 09, 2003
It was unbelievable how much stuff remains in your tanks after emptying them, the Flush King made short work of cleaning out my tanks and my sewer hose was clean to when I was done no additional rinsing was needed before storage.
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By

REALLY FLUSHES


90 out of 92 people found this review helpful.
June 25, 2003
IT IS A GREAT PRODUCT AND REALLY FLUSHES EVERYTHING OUT VERY WELL. MY ONLY COMPLAINT WAS HOW FAST IT WORKS. AFTER ABOUT ONLY 4MIN. I HEARD A RAIN SOUND AND WATER WAS COMING OUT OF MY VENT PIPE ON THE ROOF. ONLY LET IT BACK FILL FOR A MIN. OR SO.
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By

IT WORKS!


76 out of 77 people found this review helpful.
June 16, 2003
We used to have problems with smell and sticking sensors. NOT ANYMORE! We used the Flush King for the first time this past weekend. After filling the tanks completely and flushing a couple times, the sensors now seem to be accurate and the smell is GONE! It was EASY and worth the initial cost.
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By

Everybody Needs One


23 out of 24 people found this review helpful.
May 29, 2003
This is absolutely great; gets the 'hidden extras' out of your black tank; very easy and convenient to use on all tanks.
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By

Clean and easy


70 out of 73 people found this review helpful.
February 08, 2003
Use this for every dump. Like the fact that I can see through the clear area what is coming out. I close the Flush King valve and back-fill the tank. Keep doing this until only clear water flows from the tank. By filling the tank through the drain it will move any solids built up at the tank's discharge. After dumping both tanks I run some water down the hose and I'm done. Clean and easy.
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Q & A



Product Question & Answer

1 questions : 1 answers
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How does this attach to the sewer lines on the trailer?
1 answer(s)




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