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Old 02-10-2017, 02:44 PM   #1
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Thetford Model 42072

New 2017 Leprechaun with Thetford 42072 toilet. From day 1, bathroom began to stink with sewer smell. We are not newbies. Previous 43' fifth wheel with 2 bathrooms - no smell. Read all the Dometic toilet problem threads and checked the vent pipe. I have taken the toilet off and separated the bowl and the pedestal, but no fluid found. Perhaps the seal was not good? Any help would be GREATLY appreciated!
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Old 02-10-2017, 02:52 PM   #2
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Something to look for is a small vent in the toilet bowl that is to shunt water to the holding tank , should a seal leak and the bowl fill endlessly .

This must be filled with water in order to make what ever is used as a P trap function.

Perhaps?
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Old 02-12-2017, 02:03 PM   #3
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Angry

Took the toilet apart, and no problems discovered. The inside looked clean. So, i reinstalled it this afternoon. The black tank is clean, so no smell right now. Grey tank is also dumped, so the mystery continues...
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Old 02-12-2017, 02:08 PM   #4
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Quote:
Originally Posted by wkcox View Post
Took the toilet apart, and no problems discovered. The inside looked clean. So, i reinstalled it this afternoon. The black tank is clean, so no smell right now. Grey tank is also dumped, so the mystery continues...
you may not be getting a good seal around toilet and flange . the rubber seals do not always seal and can allow some sewer smells out . i installed a wax seal on mine because the rubber seal all through did not leak when in use did allow some smell out . problem solved
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