Image: Provac Australia Vac Truck in action, Melbourne, Australia, 2019
Hydro Vacuum Excavation is the process of digging holes in the ground using pressurized water and an air vacuum system. This method of digging is a safer and more accurate way to excavate around underground services.
A hydro vacuum excavation truck, most commonly referred to as a ‘Vac Truck’, uses a high-pressure water and an air vacuum system to excavate the earth’s surface. The pressurized water gun is used to cut through and break down soil which is then sucked up through an industrial vacuum hose and transferred into a debris holding tank on the back of the truck. The soil that is removed from the ground is then dumped at an appropriate dumping facility at the end of each day.
The main benefits of using a Vac truck are listed below;