Dump valve won't close all the way
My black tank dump valve suddenly started not closing all the way. About 1/4" left to go on the shaft. I tried opening and closing it several times, but no luck. I'm guessing maybe TP is stuck in t...
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Since the valve is already open the tank should now be empty. Try to tilt the RV the opposite direction of the valve to move any remaining liquid away. Only 4 screws hold the valve in place and should be fairly easily accessible. Remove the valve and keep an eye on the 2 seals on each side. Remove the TP likely built up in the opening, clean and re-install. If it's anything internal (unlikely) you just buy and install a new one.
