Water Cannon hot water diesel pressure washerDiesel-powered hot water pressure washers from Water Cannon are customizable with psi ratings from 3,200 to 4,000 and deliver from 4 to 8 gpm. The V-belt-drive units are powered by Kohler diesel engines, have 15-gallon poly diesel fuel tanks, a 12-volt battery encased in a marine-duty battery box and 45 amp charging system. 321/800-5744; www.watercannon.com.Polston multi-purpose cleaning truckThe PAT 949 combination truck from Polston Applied Technologies provides a standalone cleaning system for large diameter lines, digesters, grit chambers, lift stations, water treatment plants, ponds, lagoons and other difficult-to-clean environments. The combination unit delivers up
