Waste water
I have a 2017 Jayco 5th wheel. Before departing the campground I open the black water valve, drain the tank then use the internal tank flush for 15 - 20 minutes. I then close the black and grey water ...
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Residue that is still on inside of drain lines AFTER the dump valves......or one of the waste valves leak thru IF you are really getting a 'few gallons'
Usually the black tank valve due to stuck TP in drain valve blade grove which doesn't let blade fully seat
Usually the black tank valve due to stuck TP in drain valve blade grove which doesn't let blade fully seat
