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Bathroom plumbing question.

tom1ie · 2021-07-25 09:03:00

Hi all, just want to check something. I have to replace my bathroom sink, which also means changing out the p trap. the waste pipe goes outside to the soil stack which connects into the sewage. When I take off the p trap should I cover up the pipe temp (while I’m changing the sink) to stop smells or gas coming back up from…

25-07-2021 9:03am

#1

tom1ie

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Join Date: November 2007

Posts: 10968

Hi all, just want to check something.
I have to replace my bathroom sink, which also means changing out the p trap.
the waste pipe goes outside to the soil stack which connects into the sewage.
When I take off the p trap should I cover up the pipe temp (while I’m changing the sink) to stop smells or gas coming back up from the soil stack as there is no water trap in the soil stack system? Or do I need to?

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Answers

#2 25-07-2021 4:29pm

K.Flyer

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Posts: 8456

Yes, I would anyway.
I prefer to wrap some plastic around it and tape it up rather than putting anything into the pipe.

1
#3 25-07-2021 4:53pm

tom1ie

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Join Date: November 2007

Posts: 10968

Thanks for that.
that’s what i done with some cling film.

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