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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…

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25-07-2021 10:03am

#1

tom1ie

Registered Users Posts: 10,036 ✭✭✭✭

Join Date: November 2007

Posts: 9769

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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#2 25-07-2021 5:29pm
K.Flyer

Registered Users Posts: 8,565 ✭✭✭

Join Date: August 2010

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.

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#3 25-07-2021 5:53pm
tom1ie

Registered Users Posts: 10,036 ✭✭✭✭

Join Date: November 2007

Posts: 9769

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

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