Can You Put an Air Admittance Valve in a Wall? Pros, Cons, & Tips
Air admittance valves (AAVs) are one-way valves that allow air to enter a plumbing vent system but prevent sewer gases from escaping. They are often used in situations where it is difficult or impractical to run a traditional vent pipe to the roof. But can you put an air admittance valve in a wall? Can…