ash_corsa
Member
Registered: 15th Apr 04
Location: Shrewsbury
User status: Offline
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Quick Q to any plumbers out there...
Ive moved a stud wall in my bathroom which had the soil vent pipe inside.
Now im struggling to fit it in the new stud wall due to the joist layout above so i was wondering if i could put it outside.
Currently it looks like this, comes out of the ground, then a 90 degree elbow into the bathroom, it runs under the bathroom floor then up into the attic and through the roof with a vent on it.
Could we change the outside elbow for a 'T' joint and run the vent pipe up the wall. The only thing is we cant get it 900mm above window height as the roof overhangs quite a bit. Is that a problem?
The only other thing ive found its an air admittance valve, how good are these? Could i use 2" pipe from the waste pipe up the wall into the loft with one of these on the end or has it got to be 3"??
Thanks
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myke
Member
Registered: 7th Feb 01
Location: High Wycombe, Buckinghamshire
User status: Offline
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How far does the roof overhang?
I'd have thought you could take the angle out quite steeply and have a pipe bracket on the fascia or something to support the weight and then shoot up to get the extra height.
or cut a hole for it in the soffit and have it going through the roof like the existing one does.
I keep hearing about Derco/durko valves but i'm not sure what these are. probably the same as the air admittance valve that you mention.
Sounds like they could save a lot of hassle if they're simple and cheap.
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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air admitance valves are fine either indside or outside, you could bring the vent up inside just above the cistern of the bog and put an air admitance valve on, doesnt have to go into the loft then
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ash_corsa
Member
Registered: 15th Apr 04
Location: Shrewsbury
User status: Offline
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Cheers for the help, think ive sorted it now. Replaced the whole stack and changed the elbow for a 'tee' and ran the vent right to the top, looks sweet!
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