The HX-15 hydroexcavator from Ramvac by Sewer Equipment has a 15-yard debris tank with a temperature-controlled environmental chamber and directional discharge system to off-load debris back into the excavation site when finished, without the mess of dumping the tank. It has a long-range wireless remote, NEMA 4 electrical system, a 400,000 Btu water boiler, a three-stage cyclonic filtration system and efficient 3,000 cfm blower. It is available with a RamAir air excavation system for when water cannot be added to the problem area. 800/323-1604; www.ram-vac.com.