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...
Forum Discussion
Old-Biscuit wrote:
If you drain galley tank and leave drain valve OPEN does kitchen sink drain ?
Which Air Admittance Valves are you using......cheap $5-$6 black ones from Home Depot/Lowes?
The tank will drain great when it's drain valve is opened, I need to change out the gate valve as it has a drip. The admittance valve I've used was one from Home Depot first, then camping it did it again so I ran down to a rv parts store and got one from there. Is there a better type of valve?
