The 550-gallon HotJet II XtremeFlow II from Hot Jet USA is available with 300- and 500-gallon vacuum units for hydroexcavation and can be skid- or trailer-mounted for reliability and ease of operation. Two separate power units power the hydroblaster equipment and the vacuum, allowing for easy service and operation. Hydroblaster systems are available from 4 to 10 gpm, with psi ranging from 2,000 to 7,000. The unit can be run with either hot or cold water, with hot water systems proven to blast through frozen conditions. The vacuum systems run from 18 to 35 hp with gas power plants and from 26 to 68 hp with diesel power plants. Waste tanks are available from 200 to 800 gallons and can be mounted on a skid platform to mount on a vehicle or trailer, or in a complete turnkey trailer package. 800/624-8186; www.hotjetusa.com.