Capping Soil pipe ?

[towser]

Hello all. Don't know much about DIY, looking for some pointers please.
In upstairs bathroom bath is fitted next to wall, with space above stairs, and a cupboard above with gas boiler inside, would like to move the wall back maybe a foot moving the bath as well making bathroom bigger. a problem is the soil pipe runs through this cupboard to the roof just inside the cupboard door.
The question is can the soil pipe be cut removed from the cupboard floor upwards and then capped ( if this is the right word) somehow with a kind of diaphragm or similar?

Thanks in advance.

 

[Softus]

The question is can the soil pipe be cut removed from the cupboard floor upwards and then capped ( if this is the right word) somehow with a kind of diaphragm or similar?

The diaphragm you're thinking of is an Air Admittance Valve, but this only admits air and won't relieve any positive pressure in the foul drain.

This is why modifying the stack in this way requires building notice to be given to your LABC, and is subject to building control. Your BCO will then tell you what you can and can't do.

Clearly you won't want to pay a fee and then be told that you can't do it, so you should consult the BCO now and take his/her advice.

If you're open and honest with your BCO then you should find him/her very helpful.

 

[towser]

Thanks Softus