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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Wll I got about a quarter inch of silicone off the bottom of the pipe looks like from when they pushed it into the tank, I have ran a tape measure down the drain/vent pipe an there's no blockage. With the tank drain open the sink will drain like a champion with the tank closed it builds pressure again, only thing it could be now is I'm going to pick up some draino and wait till the sink backs up again and dump it down the drain to see if it clears the blockage. There also appears to be a smaller line or somthing in the middle of the tank that I can't reach after work I'm going go put the nozzle jet sprayer on and shoot it in the tank to see what that is I'm suspecting it's the level Guage but won't hurt to spray it down.
