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TheFishBanjo t1_ixm6318 wrote

The only bathroom that I ever encountered with a septic smell was because the wax ring under the toilet was defective. They are cheap so just change that and reseat that toilet.

Then, figure out a way to reach that gas valve without stepping on the toilet. A folding step ladder for example.

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notoriousbgone t1_ixm9wtd wrote

Wax ring is an American thing, we don't have them in Europe at least not as s standard thing. We use large diameter PVC couplers with rubber gaskets for connection between toilet and floor pipe.

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otr_otr_otr OP t1_ixmbu2d wrote

Yeah I looked again at my toilet here - it flushes to the rear (but stands on the floor - so not a proper hanging toilet either), and there are multiple PCV pipes / couplers that go into the wall. All quite crusty and old.

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Removing that toilet and redoing the PVC portion is more than I would endeavor, but I suppose that this is what the plumber had in mind.

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Any intermediary solutions, such as drowning it in Silicone?

Or will that not work on PVC anyway?

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