Black Holding Tank slow to drain...
Our Black Holding Tank is slow to drain. Can this be caused by a bad Air Admittance Valve or a clogged vent cap or both? The tank dumps fine at first, but it eventually backs up and then very slowly...
Forum Discussion
Thanks for that explanation Aron. I have found that not opening the black tank valve fully keeps the system from backing up. We are heading out in a few days and will let the campground owners know of the issue when we leave. Every site has its own septic, so I'll let them dig into it after we leave.
-Michael
-Michael
