Black tank - small leak into drain pipe.
We've gone out twice so far this year, and both times we have been confronted with the same problem... When leaving the park, I empty the tanks, flush, and then refill a few gallons in the black ta...
Forum Discussion
Worst case senario you can replace the gate valve - not expensive. Sometimes you get crud stuck and the valve won't close properly - sometimes the rubber gasket shifts out of place. Try cleaning - if that doesn't work take the gate valve apart and reset/replace gasket as appropriate.
