4.5 5 14
Thetford Drain Valve Lubricant - 24 oz.
Item No. 4179
Thetford Drain Valve Lubricant - 24 oz. is rated 4.5 out of 5 by 15.
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Thetford Drain Valve Lubricant - 24 oz.
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Thetford Drain Valve Lubricant - 24 oz.

Thetford Drain Valve Lubricant - 24 oz. is rated 4.5 out of 5 by 15.
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Item No. 4179
$9.49 $10.79
Save $1.30 ( 12% Off )
Save 10% off $99+ or 15% off $99+ GSM See Details
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Additional Information
Thetford Drain Valve Lubricant solves holding tank problems.

Here's an ounce of prevention in a 24-ounce bottle. Our special formula prevents seal wear, sticky drain valves and keeps all the plumbing lines operating smoothly.
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  • Non-staining, formaldehyde-free and environmentally safe
  • Non-staining
  • Made in the USA
Unit Weight 1.66 lb
Brand Thetford
MFG Part No. 15843
Rated 5 out of 5 by from worked After taking a couple of sewage showers, one treatment restored full closure of the valve with no more seepage! For a valve that won't close all the way, this is good stuff!
Date published: 2013-07-08
Rated 5 out of 5 by from Great product. I have used this for quite some time and have never had issues with stuck valves.
Date published: 2012-04-02
Rated 2 out of 5 by from Didn't do much I could not tell if this product did anything. Instead, I pour a half cup of cooking oil into an empty tank, flush it in with a little water, then go exercise the valve. Worked better than this stuff for me.
Date published: 2020-12-04
Rated 5 out of 5 by from keep flushing Seems to work well. hard to know lol It is a bit to soon to tell
Date published: 2020-08-02
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How do you use this product ?

Asked by: Anonymous
you pour 1/5 of the bottle into the holding tanks after emptying them and closing them back up. They will lubricate the tanks.
Answered by: cw_staff
Date published: 2019-09-08
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