The vacuum excavation system, or air knife is used for potholing, daylighting, or otherwise making a hole in the ground in the safest, most time efficient way possible. This unit pictured on the left has been used effectively at gas stations, where health and safety concerns often require its use. The system consists of the equipment that is pictured to the left, a truck, and a trailer mounted air compressor, making it one of, if not the most, compact vacuum excavation systems available on the market today. The unit is equipped with 5, 7, and 9 foot lances and is capable of making a hole up to 9 feet deep. The equipment pictured is supplied by up to 100 feet of air supply line, making indoor work, if necessary, a breeze where traditional units would have great difficulty working. Another advantage of this unit is that the spoils are kept adjacent to the hole.
