Air Excavation Pothole Services
Air vacuum excavators utilize the kinetic energy in a high velocity air stream to penetrate, expand and break-up soil. The loosened chunks of soil and rock are then removed from the hole through the use of a powerful vacuum. In this way a test hole is created that reveals the buried utility. A typical test hole is 6 inches to 12 inches in diameter and 4 feet to 6 feet deep.
Dry or air excavation has several advantages over water vacuum excavation. For example the air method is faster in most soils and eliminates the need for mud disposal. Since the spoils remains dry, it can immediately be used for backfill. Air methods are safer for the operator and the utilities. One shortcoming of air units is that they are not effective in all soil types, especially coral, clay and blue lava rock.