Cheater Vent - Air Admittance Valve
The air admittance valve(AAV) also known as a cheater valve was not closing properly in my TC and was stinking up the place. I sealed it off since I already have a vent on the roof. Now I'm wondering,...
Forum Discussion
It depends on the run from your sink to the gray tank. If there is not enough ventilation, a large stream of drain water will siphon out the sink drain trap, letting gray tank gas out the drain. If you can let a large volume of water drain out of the sink without starting a gray tank stink in the sink, you may not need it. In most cases, it is there for a reason...
