Trailer mounted, self-contained hot pressure washer with abrasive materials hopper. American Water Works Model #PH50535HBOF / UT330 “or equal”. The intent of this specification is to describe a safe and convenient manner for Parks and Recreation employees to clean buildings, walls, fishing docks, and other cement, aluminum, and wooden structures. The trailer mounted cleaner described below shall be towed by a ½ ton or greater pick-up truck. CLEANER/WASHER: One (1) 330-gallon water tank with top filling lid and 1 ½” gate valve and low water shut off. One (1) high pressure hose reel with 200 feet of 3/8” 5000 PSI hose – hand crank or automatic retract. One (1) inlet hose reel with 100 feet of ¾” water hose and in-line water filter – 50-micron stainless steel – hand crank or automatic.