Internal Soil Pipe and Bathroom Refit
Drainage and wastage systems and plumbing help, advice and answers

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Cameron1590
Labourer
Labourer
Posts: 1
Joined: Wed Feb 15, 2023 7:51 pm

Internal Soil Pipe and Bathroom Refit

by Cameron1590 » Wed Feb 15, 2023 7:57 pm

Hello,

Looking to refit our bathroom and have a question on the internal soil pipe.

Currently the pipe runs vertically up the one corner of the bathroom and is boxed in. It then vents into the loft space with an aav.

If I could remove the boxing in and cut the soil pipe down to vent underneath the bath and fit a new aav on top it would enable me to get a large bath in (current bath 1.7m vs 1.9m due to the boxing in).

The question is, would I suffer any issues if I were to do this?

I.e instead of the pipe ending in the loft with an aav fitted, it would now end underneath the bath with an aav fitted.

Hope this makes sense.

Thanks

stoneyboy
Project Manager
Project Manager
Posts: 6535
Joined: Wed Dec 10, 2008 6:44 pm

Re: Internal Soil Pipe and Bathroom Refit

by stoneyboy » Thu Feb 16, 2023 10:41 pm

Hi cameron1590,
Assuming you have a proper vent pipe open to the outside air, cutting the bathroom one down to bath level should be ok. Fit the AAV towards the front of the bath so that you can replace it easily when it stops sealing.
Regards S

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