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Q: I question whether 6 ounces is needed to lube the seal. It seems that pouring in just enough to completely cover the bottom of the bowl would lube it.

I'm sorry to say this stuff was garbage. It was easier to just go buy a new seal than to waste the $ on this. Didn't even work a little bit.

Q: do i pour in while the toilet has water in it or should the seal be dry?

Pour in with no water. Make sure valve is closed. Pour about a 1/4 of container if I remember correctly and leave overnight. Fixed my seal. Hasn't leaked since

Q: Can it be used with valve lube or is this the same thing

The two products are compatible with one another and serve two different purposes. Toilet seal works in the bowl to keep the flush valve functioning . Valve lube goes straight into the blackwater (poo) tank and ALSO in the greywater (sink&shower) tank to prevent problems with the seals that keep the drain valves operational. I use both as preventive maintenance.

Q: Does this work for the seal on cassette toilets?

This is not a sealant. It is simply advertised as a lubricant for sliding toilet parts. If you're using it as such....it should work

Product ID: 733088592

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Details

Brand
Thetford
Item Form
液体
Specific Uses For Product
RV/マリン。
Unit Count
1.0 個
Surface Recommendation
トイレ
Number of Items
1

⚙️Prolongs seal life & smooth operation

🛡️Silicone-based, petroleum-free formula

🛥️Universal RV & boat use

Frequently Bought Together

Thetford RV Toilet Seal Lube and Conditioner - Toilet Seal Lubricant - 24 oz 36663

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Description

🛠️ Keep your RV & boat toilets running smooth — because every seal deserves VIP treatment!

ALL IN ONE SEAL CARE - Perfectly compatible with all permanent and portable RV & marine toilets for seamless versatility.
TRUSTED THETFORD QUALITY - Backed by a leading brand in RV and marine sanitation for reliable, professional-grade performance.
SMOOTH SAILING EVERY TIME - Prevents sticking and keeps your toilet seals operating flawlessly, season after season.
WINTER READY CONDITIONING - Ideal for year-round use, including winterizing your RV or boat toilet systems.
SILICONE POWERED PROTECTION - Petroleum-free formula ensures safe, long-lasting lubrication without damaging seals.

Thetford's RV Toilet Seal Conditioner is a silicone-based, petroleum-free lubricant designed to penetrate, protect, and extend the life of toilet seals in all permanent and portable RV and marine toilets. It prevents sticking, ensures smooth operation, and is suitable for year-round use including winterizing, making it an essential maintenance product trusted by professionals and enthusiasts alike.

Specifications

Manufacturer	Thetford
Brand	Thetford
Model	36663
Product Dimensions	6.35 x 4.19 x 20.96 cm; 750 g
Batteries	1 Unknown batteries required.
Item model number	36663
Is Discontinued By Manufacturer	No
Item Dimensions L x W x H	6.4 x 4.2 x 21 cm
Item Weight	750 g

Have a Question? See What Others Asked

I question whether 6 ounces is needed to lube the seal. It seems that pouring in just enough to completely cover the bottom of the bowl would lube it.

do i pour in while the toilet has water in it or should the seal be dry?

Can it be used with valve lube or is this the same thing

Does this work for the seal on cassette toilets?

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