Gradall Introduces All Excavate HydroexcavatorThe Vacall All Excavate hydroexcavator from Gradall Industries Inc. features a dedicated system for excavating around water, sewer, gas and utility lines. The unit’s high-pressure water system has a hydraulically driven variable-speed system with rheostat control to minimize water usage and refill time. The system powers a wand that delivers a high-pressure stream to break up material. Water pumps are available in 10, 15 and 20 gpm with 3,000 to 3,500 psi. To protect from freezing, the water system, wand, control panel, tools and worker apparel are enclosed in a heated compartment. The water tank is
