The new Combo Hydro from Hi-Vac Corporation is a hybrid of Aquatech sewer cleaners and X-Vac hydroexcavators, and comes with a powerful 27-inch Hg blower. It has a large-capacity water pump for sewer cleaning that runs 80 gpm at 2,500 psi and hydroexcavation water flow of 20 gpm at 2,500 psi. Equipped with a 400,000 Btu boiler, the heated enclosure for the water pump and all water components enables the Combo Hydro to work in cold conditions. 800/752-2400; www.hi-vac.com.