DIY Doctor UK DIY Forums

Posted: **Tue Feb 24, 2009 10:45 pm**

How do you decide which stack is to vent to external air? I appreciate all
appliances are to be vented via an AAV or stack to external air. But which?

Posted: **Wed Feb 25, 2009 6:26 pm**

Each property must have a stack open to air or similar, and it should be sited at the end of the run furthest from the connection to the public sewer.

DIY Doctor UK DIY Forums

When to vent to outside air

When to vent to outside air