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Old 07-04-2015, 10:54 AM   #1
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seal in toilet


I noticed my toilet is not holding water, Do I need to replace the seal and if so how hard is this to do ?


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Old 07-04-2015, 11:28 AM   #2
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You can purchase the seal online if you know the make and model. I would try cleaning it with an old tooth brush and putting a lubricant on it from time to time first.

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Old 07-04-2015, 11:45 AM   #3
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If this is only a slow leak at this point you may not have to replace the seal. I had this happen to me.

When I get home from a camping trip I service the black tank with chemicals ready for the next trip. While there is still that normal inch or two of water in the toilet I pour in an ounce of Thetford Toilet Seal Lubricant. It is heavier than the water and will settle on the seal.

Note that this is not how the instructions on the bottle say to do this but my way has worked. My seal no longer leaks while camping.
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Old 07-06-2015, 06:58 AM   #4
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Originally Posted by djvmax07 View Post

I noticed my toilet is not holding water, Do I need to replace the seal and if so how hard is this to do ?

Did this last month. Not hard at all. After getting the new seal kit, with all water off (of course), disconnect the water supply line from the toilet, take off the two nuts from the base attaching it to the floor and remove. The seal kit should come with an instruction sheet showing how to separate the bowl from the base. Ours had two bolts on the back side , a slight twist to unhook the tabs holding the bowl to the base. Lift off the bowl, and the seal is right there. Use some plumbers grease (90% silicone) on the surface the blade slides on, and reverse to install. Our kit came with a new seal at the floor, note how you take thing apart, and reinstall. I think it took about 30 minutes.
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