I want to dig in a bog garden, dig a big hole, put down some plastic, fill some of it with pea gravel, place a pipe in there, and fill the rest with black dirt and peat moss and fertilizer. Then I could just backwash into the pipe, and it would also provide water for the bog plants.
Right now though, I just have a quick connect coupling on the pump, and another on the hose, and when I back wash I just roll it out the back fence and blast it out into the alley.