HOW WATER SANDBLASTING WORKS?
Start the high pressure system and adjust the water flow and system pressure with your nozzle selection, pump RPM and Regulating Unloader setting. Open the trigger on gun to assure system is operating properly. Place the sand induction probe in the sand supply container. With the trigger on the gun open, adjust the small valve on the mixing head. The adjustment creates a vacuum in the sand hose line and starts the flow of sand. The pressure washer sandblaster should be approximately 12 to 15 inches away from the work surface when the trigger is opened and the water sandblasting operation begins. The angle of attack and distance from the work surface may be varied to provide the best work speed, while still maintaining the greatest amount of impact energy. For optimum performance the sand inlet hose should not exceed 25 feet. When the wet sand blasting unit is operating efficiently, there will be a smooth and continuous flow of sand through the nozzle. The amount of sand flow is directl
