Sinks not draining/poor venting?
Two new under sink vents and it still is not draining my sinks, if I unscrew the air vent the sinks will suck down like a champ. I can't have a roof vent because I have a island sink, the only roof v...
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I will ask this just one more time and then I am moving on...........
"If you drain galley tank and leave drain valve OPEN does kitchen sink drain"?
"If you drain galley tank and leave drain valve OPEN does kitchen sink drain"?
