AIR ADMITTANCE VALVE USAGE - INTERNACHI MESSAGE BOARD.
Studor Mini-Vent used for Plumbing Drain Ventilation. Studor Mini-Vent used for Plumbing Drain Ventilation. Studor Mini-Vents are IT, when you just can't hit the roof! Top questions and answers about Air Admittance Valves. Find 32 questions and answers about Air Admittance Valves at Ask.com Read more. Does anyone have experience with air admittance valves, which allow venting of plumbing without having to vent through the roof? An air admittance valve, or AAV, is a device used in plumbing. Not every home plumbing system has an AAV, but having one installed has many benefits. Comments about AAV height in relation to drain height? STUDOR Air Admittance Valves (AAVs) provide plumbing ventilation to prevent the loss of water seals in traps without costly roof penetration and vent piping. Discuss Air Admittance Valve Problem at the Plumbing Forum within the UKPlumbersForums; Hi Guys, I need some advise on my situation. How to Plumb a Kitchen Sink With an Air Admittance Valve.