MCB Series skid-mounted pressure washers from Cam Spray can be used with a flatbed truck, pickup or van ­— with or without an onboard water tank. They are available in operating pressures from 2,000 to 7,000 psi and don’t require plugging into an electrical source. These machines use gasoline engines with a high-amp charging system. The engine provides power to drive the pump system and provide 12-volt DC power to keep the battery charged and operate the burner system. They include an industrial gas-powered engine; triplex plunger pump; chemical injection; 50-foot hose; and a trigger gun with 0-, 15-, 25- and 40-degree nozzles. The burner system includes a rust-free fuel tank and heavy-duty coil with stainless steel wrap, and is controlled by an adjustable thermostat. 800-648-5011; www.camspray.com.