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
The hose connecting the tanks will work in theory. The problem will be when the hose becomes full of liquid you have lost your vent again. Any vent must come off of the top of the tank. When plumbing a house the vents from the first floor must go above the highest fixture on the second floor before being tied together, or it must go through the roof separatly. If the first floor vent is connected to the second floor drain then it becomes a drain and not a vent. A multi floor building will have a designated vent stack which no drains run into. Best bet is to drop the tank.
