Good Morning, Last time we went out, after hooking up to the sewer line at the campground, my black tank lever was super hard to open. Not sure why or what preventative maintenance can be done to en...
Don't put bleach or chemicals in the black tank other than those intended for black tank treatment. I bought a used 5th wheel years ago that some clean freak had ruined the roof, interior and holding tank valves with bleach. It sure was clean though.