MortarThePoint Posted January 28, 2021 Share Posted January 28, 2021 Architect originally had a the waste pipe from the bathroom going down through the floor in the corner (green arrow) as this aligned with a wall below. We have removed the wall below and are moving the waste pipe to the red circle as its tucked away there. The plan is that it is on the outside of the house through the GF and then on the inside through the FF. I'm wondering where to put the SVP tile outlet as having it near the chimney is likely to be difficult. Is it allowed to have the waste pipe in the red dot position and then a pipe leading up to the SVP vent outlet in the original green arrow position. I can't imagine why it wouldn't be OK, but building regs are often a surprise or there may be something I am missing. Can the pipe to an SVP vent outlet be narrower than 110mm, e.g. 45mm? Link to comment Share on other sites More sharing options...
Mr Punter Posted January 28, 2021 Share Posted January 28, 2021 Why not just have it outside all the way? Link to comment Share on other sites More sharing options...
MortarThePoint Posted January 28, 2021 Author Share Posted January 28, 2021 (edited) 3 minutes ago, Mr Punter said: Why not just have it outside all the way? It would have to wrap around the soffit/fascia or punch through it which isn't so ideal. Nice to have it hidden really. Edited January 28, 2021 by MortarThePoint Link to comment Share on other sites More sharing options...
MortarThePoint Posted January 28, 2021 Author Share Posted January 28, 2021 Below is a sketch of what I am thinking of. The red is 110mm soil pipe and the two blues are 50mm(?). If required by the regs, the light blue could be 110mm I guess. Link to comment Share on other sites More sharing options...
Mr Punter Posted January 28, 2021 Share Posted January 28, 2021 10 minutes ago, MortarThePoint said: It would have to wrap around the soffit/fascia or punch through it which isn't so ideal. Nice to have it hidden really. You could terminate under the eaves and fit an external AAV. 1 Link to comment Share on other sites More sharing options...
MortarThePoint Posted January 28, 2021 Author Share Posted January 28, 2021 3 minutes ago, Mr Punter said: You could terminate under the eaves and fit an external AAV. Haven't fully known / thought about an AAV before. Floplast have an exterior one. Can they be used anywhere a vent is needed? They only mitigate against a vacuum, not a positive pressure. Link to comment Share on other sites More sharing options...
Mr Punter Posted January 28, 2021 Share Posted January 28, 2021 If you are at the head of a very long run, you may need an open vent, otherwise the AAV will be fine. Link to comment Share on other sites More sharing options...
MortarThePoint Posted January 28, 2021 Author Share Posted January 28, 2021 Just now, Mr Punter said: If you are at the head of a very long run, you may need an open vent, otherwise the AAV will be fine. We'll have a package sewage treatment plant about 30m from the house and then there are currently two SVP outlet vents specified by the architect. This one is the one furthest from the plant, but the soil pipe will separate at a manhole outside the house. This position is approx 25m pipe run from that manhole and the other approx 12m. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now