Didn't mean to start a firestorm, but apparently I have.
A few answers or explanations.
1) I plan on getting a black flow preventer for my hose I used when dumping the black tank.
2) It sounds like some, if not most on here, believe I keep a hose hooked between the spigot at the camp site and the black tank flush system all the time. Never the case. I hook it up when I need to flush the tank.
3) It also sounds like some if not most here think I have a full black tank when hooked up. Not so. I dump the black tank, then hook up the hose to the flush system, and turn it on. I let it spray and dump at the same time, so there is no way "stuff" from the black tank can enter into the hose.
4) There is a vertical run of at least 3 feet before the black flush piping exits the rear of the trailer. The black flush connection on the rear of the trailer is nearly 4 feet above the ground.
