Black tank flush
I have a 2011 canyon trail 5th wheel. The black tank flusher worked fine early in the season, now I get water leaking out under side of camper when flushing. I think it might be a faulty anti siphon valve, but I can’t find it. Had a service tech look & he couldn’t find it either. He looked behind shower valves, but not there. Any other suggestions on what could be leaking? Thanks in advance.
Brad
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