Hydroexcavation enables damage-free digging around buried utilities, but traditionally, productivity has been limited by the periodic need to empty vacuumed soil slurry from the debris tank and refill the freshwater tank.Non Stop Hydro Excavating of Red Deer, Alberta, has developed a Hydro Excavator Separator (HES) that can excavate continuously without the cost and delays of dumping and water refilling. The truck-mounted system separates water from the excavated material, rendering it dry enough to use as backfill. It also recycles the water, returning it clean enough to reuse in the unit’s high-pressure pump for jetting. The system also can load the
