74vette
Nov 22, 2014Explorer
Black tank problem
I originally had a clog between the toilet and the tank. I ran a snake through and removed the clog. I do not know what caused the blockage but I use a tank treatment with every tank flush. I also have a tank wash down system I use at every dump. Today I went to drain the black tank and the tank will not drain. The valve seems to operate correctly. When first opening the valve I get a little flow then nothing. The tank is almost full. I am thinking that what ever blocked the drain between toilet and tank is now blocking the valve. Any suggestions would be appreciated.