Holding tank vent clogged or obstructed?
When emptying the gray tank I noticed that it will flow fairly well then slow, followed by a whoosh sound and then drain completely. Also, after dumping the black tank I am noticing an odor. After rea...
Forum Discussion
I do not intend to hijack this thread, "But" I do not understand.. Is the whoosh caused by the shower P trap or the Air Valve opening as it should?
