Rolfsi
New Member
I have an 2 pvc pipe for a vent that I am reducing to 1 1/2 inch to fit through the top plate. I am installing a vanity with an 1 1/2 inch drain. The problem is the vanity trap will be about 5 ' from the vent. Am I out of spec for critical distance? Can I get by with the installation of an AAV between the vent and the vanity if I am?