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
buckarooman wrote: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?
The TANK drains OK when drain valve is open
BUT.......does the KITCHEN SINK drain better when tank drain valve is LEFT OPEN?
(Tank draining OK suggest the air admittance valve is working --- opening----and providing venting for tank draining)
