Forum Discussion

jandvis's avatar
jandvis
Explorer
May 01, 2013

Black tank flush

The jets in our black tank seem to be stopped up and prevents me from being able to flush the tank after I dump it. Can anyone tell me how to unstop them?
  • You probably have a backflow preventer valve somewhere in the line. That may be malfunctioning. Or the spray nozzles may be clogged up. Someone suggested filling the line with vinegar to clear that problem.