Similar to hydro-excavation (without the water), air knifing utilizes high velocity air to penetrate, expand, and break up soil. The soil is then removed from the area using a powerful vacuum. Air knifing (aka potholing or daylighting) includes all of the advantages of hydro-excavation. In addition, air knifing results in dry soil waste, which typically reduces disposal costs compared to the slurry produced through hydro-excavation.

Typical air knife applications Include:

• Surgical excavation around known or suspected utilities
• Pre-drilling location clearance
• Underground utility location verification
• Underground piping and conduit repairs
• Rehabilitation/desilting of small diameter injection wells