Black Flush Anti-siphon Valve
We’ve chased black tank odors on and off for quite a few years, for the most part they’ve been resolved BUT once in a while we get a slight odor in the fridge/pantry corner of our VL320. Recently I s...
Forum Discussion
Black or grey tanks should not every vent inside in my opinion. My tanks have a roof vent. Does your black tank have a roof vent? How can there be a back flow problem when the flush line has a check valve? Make sure the check valve is working and eliminate the anti siphon valve.
