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Old 05-12-2017, 05:58 AM   #1
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Join Date: Nov 2016
Location: Missouri
Posts: 129
toilet seal

The seal in our porceline toilet lets the water leak slowly out. I've cleaned it with a toothbrush (not the one I use for my teeth, sprayed it with silicone (still leaked), and treated it with silicone paste (still leaks). The RV sat on the dealers lot for an undetermined length of time and it probably dried out. Any suggestions? Has anyone changed this seal, and if so, can it be done without removing the toilet?

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part-time workampers since 2005; about 6 months/year. Tow vehicle: 2001 Dodge 2500 diesel. Recently upgraded to a 2008 Cruiser 29CK from a 2002 Keystone Sprinter.
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Old 05-12-2017, 07:06 AM   #2
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Spread Vasoline on the seal worked for us
Frank and Janet Henn
2017 380MBH pushing a 2007 Dodge
CDT with a six speed Automatic
Traveling with Hoover and Rainbow the wonder dogs and now with Sunshine the rescue Schnauzer.
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Old 05-12-2017, 10:27 AM   #3
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If the Vaseline don't work. You can replace the seal; not difficult but you will have to pull the toilet.
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Old 05-12-2017, 06:56 PM   #4
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What brand of toilet? If it's Thetford then the repair valve is pricey & you will have to remove the toilet to repair. In my opinion if it's Thetford & you have to remove then replace it with a Dometic 320 or 310, it can be rebuilt in place for about $20 & is a much better toilet. Mine had a Thetford, the pedal fell off & never held water, replacement pedal $70, new Dometic was about $160+/- & a much better toilet.

Danny & Linda
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Old 05-18-2017, 09:37 AM   #5
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Replaced mine last year - was not holding water in the bowl. Did not need to replace the waste ball - just the seal.
Thetford 34117 Waste Ball Kit for Style II / Style Lite / Style Plus $20.91
Thetford 34120 Waste Ball Seal for Style II & Style Plus Toilets $13.95

Was an easy job. Toilet needs to be removed to get to the bowl seal. The seal on the floor gets replaced at the same time and is part of the "kit".
Bob and Pat

2012 Cruiser Patriot CF335SS.

2011 Silverado 3500HD LTZ CCLB Duramax SRW 4X4
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