THETFORD RV Drain Valve Lubricant - 24 oz 15843
Key features
- •[VERSATILITY]: Thetford's Drain Valve Lubricant is designed to work with RV and boat drain valves
- •[FUNCTIONALITY]: Coats the plumbing lines for a complete outflow of the tank contents
- •[UTILITY]: Prevents sticky valves, ensuring a smooth operation during the emptying process
- •[CONVENIENCE]: Formulated to work with grey or black water tanks
- •[SAFETY]: Drain Valve Lubricant is 100% biodegradable and safe for all waste treatment systems
THETFORD RV Drain Valve Lubricant - 24 oz 15843
List Price: $15.46$13.91DEALYou Save: $1.55 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (44)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers3.9
out of 5
Based on 10 reviews
5★
40%
4★
40%
3★
20%
2★
0%
1★
0%
but it's easy to pour down the drain and in the toilet
John Jacob✓ Verified Purchase•June 5, 2018
Arrived fast. This if the first time I've used this lubricant, so I can't say whether it is making a big difference for the knife valves in my RV, but it's easy to pour down the drain and in the toilet. Time will tell on the lubricating effect. I purchased in because my black water tank knife valve is kind of hard to slide. I'm hoping this will help make that easier.
Might work, might not. Your experience may vary.
Jerry Lawson✓ Verified Purchase•May 20, 2018
I'd like to say this works - but I haven't seen (well, felt) any difference between 'before' and 'after' on the black tank valve. But... that's the way it goes.
We've used Thetford chemicals for a long time - this is the first one that's been any sort of disappointment.
We've used Thetford chemicals for a long time - this is the first one that's been any sort of disappointment.
I can not say I noticed any change in the ...
James B.✓ Verified Purchase•February 21, 2018
I can not say I noticed any change in the valves after using this product.
I will not buy it again but if you have a huge problem not fixed by cleaning and flushing
maybe it would be worth a try.
I will not buy it again but if you have a huge problem not fixed by cleaning and flushing
maybe it would be worth a try.
Looks like it should work
William Kahler✓ Verified Purchase•July 6, 2017
Looks like it should work. It is heavier then the water so it sits at the bottom of the tank by the outlet valve opening. Will update if there are issues but guessing there won't be.
It works
Joe✓ Verified Purchase•July 2, 2017
It temporally helps valves open and close smoothly, but again, it is only a temporary fix. If your valve are hard to open and close you will eventually need to replace them.
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