Not the washer really but the nozzle. +2000 psi, 10-12 ltrs per mn, 3 x hoses in tandem and the magic *turbo nozzle. (*£50-80 for a proper one). So get your washer, buy the nozzle. Don't forget the harness, rope, cat ladder, normal ladder,stand-off, PL insurance, sand and cement, spare tiles...