The Ready Jet nonentry drum cleaning system is a self-contained, boom-mounted, high-pressure water jet that removes "dead concrete" without damage. It is environmentally friendly, using only water with no chemicals added. One man can remove 1 cu. yd. of concrete in 60 minutes or less, compared to two men chipping out a drum for hours. Blasters Inc. 800-327-6799. www.blasters.net