Always get approval from your local plumbing inspector before installing this type of vent. A second clean-out may be required in the vertical wall vent pipe. An AAV is a plumbing fitting that you ...
Better Homes and Gardens on MSN1 个月
Plan a Remodel with the Perfect Plumbing Vent Diagram
In the plumbing vent diagram above, window framing prevents the installation of a vent line, so an AAV is installed instead.