Bathroom flood - What did I do wrong?
We have a 2008 Newmar Canyon Star. Yesterday was our last day on the road home from Florida, so I wanted to empty the gray and black tanks. First I opened the black tank dump valve, and let it empty. ...
Forum Discussion
Your problem is the Vacuum Check valve for the Black Tank flush system. The OEM's install this check valve usually in the Lavy sink area. The valve is faulty and needs replaced. Connect the Black flush again. open the Lavy sink doors and have someone turn the water on and observe if you have water squirting out. That valve if leaking is the culprit. Doug
