I'm trying to put a pressure washing / detail trailer together, What is needed? So im thinking a pressure washer with wheels 2500 psi, Generator, Water tank, 100ft hose and what else? It would double as a basic pressure washing and washing cars also. Anyone do both? As opposed to just mobile detailing? The only thing im wondering is how you connect the water tank to the pressure washer? Is it just like a water hose line or what? Thanks!