The Vacstar 800 vacuum excavator allows the spoils tank to be emptied in a controlled and safe manner. The rotary vane pump provides a strong vacuum for greater depths, distance and speed. It allows the operator to vacuum and pothole up to 200 feet from the unit, permitting backyard and previously inaccessible work areas. Units can be used to clean out manholes, catch basins, wash pits, valve and meter boxes; wash equipment and property; and safely locate utilities. Damage to buried utilities is avoided using high-pressure water to dig in all types of soil. 319/656-3434; www.vacstar.com.