Discussion Starter · #1 ·
Please Help! My kitchen stinks! LOL I just bought a house that has the Main sink and then another smaller sink in the island. The problem is that when water is drained from the main sink the septic odor comes up through the drain in the island sink with enough pressure to pop the plug out. After looking at it I have discovered that they used the air admittance valves under both sinks instead of having the vent up through the roof. I have replaced the valves with no improvement. If I take the valves off it seems to work fine with no odor, but the water overflows through open vent. Anyone have any ideas?