Hydroblaster Safety High-pressure water cleaning has become more common over the past few years, often replacing the need for sand blasting. The uses of hydroblasters vary from paint and grease removal, tank cleaning and log debarking, to rodding of heat exchangers and cleaning of sidewalks. Although hydroblasters are fairly simple to operate, they can be dangerous if not properly used. A pump is used to increase the water pressure to 10,000 psi, with larger units capable of 45,000 psi or more. This pressurized water is pumped through a flexible steel braided hose and discharged through a pipe called a lance which has...