Hydro excavation commonly known as suction or vacuum excavation or nondestructive digging uses high pressure water to loosen the soil in preparation for its removal by a specially designed vacuuming device. This method is space efficient and therefore suitable for areas that are difficult to access with conventional excavation machinery. As well as it is mandatory to use hydro excavation where there are critical existing services in very close proximity. There are number of benefits of this type of excavation, for instance, A benefit of this excavation process is that it is described as being safer for both the workers involved in the excavation process and for the infrastructure to be excavated.
