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VENTING 101 – Air Admittance Valve Pros and Cons

Section Showing AAV

During maintenance you’ll want to be assured the top of the vent is kept open. A blocked vent can be caused by leaves, dead animals and ice dams (in very cold climates). Another “not-so-common” way

Preventing Waste Line Noise in a Two Story Home

The Issue We’re at the inspection and I ask my client to stand near a downstairs wall that I suspect holds the waste line for an upstairs toilet. Before heading upstairs I asked her to listen for sounds of rushing water. I