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.

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

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.

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

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トイレットシールコンディショナー/L

Product ID: 733088592

Details

Brand
Thetford
Contains Liquid Contents
Yes
Global Trade Identification Number
Item Form
液体
Item Weight
748 g
Number of Items
1

🚐Universal RV & marine use

⚙️Penetrates & lubricates seals

🛡️Silicone-based, petroleum-free formula

NZ$349

Duties & taxes included

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Description

🛠️ Keep your throne running like new—because every detail counts!

SMOOTH OPERATOR - Prevents waste buildup for effortless, quiet toilet function every time.
TRUSTED BY THOUSANDS - 4.6-star rating from over 4,400 users proves it’s the go-to conditioner.
ALL IN ONE SEAL SAVIOR - Works seamlessly on all RV and boat toilet seals—portable or permanent.
SEAL LONGEVITY BOOSTER - Silicone-based, petroleum-free formula extends seal life and durability.
YEAR ROUND RELIABILITY - Perfect for winterizing and maintaining peak seal performance in any season.

Thetford’s 24 oz RV Toilet Seal Conditioner is a silicone-based, petroleum-free lubricant designed to penetrate and protect toilet seals in RVs and boats. It prevents waste adhesion, ensures smooth operation, and extends seal life, making it essential for year-round maintenance and winterizing. Highly rated by thousands, it’s the professional’s choice for reliable toilet seal care.

Specifications

ASIN	B002NSU0ZW
Brand Name	Thetford
Container Type	カン
Contains Liquid Contents?	Yes
Customer Reviews	4.6 4.6 out of 5 stars (4,447)
Global Trade Identification Number	00028985366638
Included Components	トイレシール潤滑剤＆コンディショナー - 24オンスボトル
Item Form	液体
Item Weight	748 g
Manufacturer	Thetford
Model Number	36663
Number of Items	1
Part Number	36663
Size	24 Fl Oz (Pack of 1)
Specific Uses For Product	RV/マリン。
Surface Recommendation	トイレ
UPC	028985366638
Unit Count	1.0 Count

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NZ$349

Duties & taxes included

In stock

Sold byAmazon Cook IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cook Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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トイレットシール コンディショナー/L

Details

Details

Description

Specifications

Common Questions

トイレットシールコンディショナー/L