Air-moving is a
vacuuming process by which materials contained in tanks, containers and surface impoundments are loaded by pneumatic conveyance (that is,
vacuuming with controlled velocity). The
air-mover can convey almost any material that will fit in an eight-inch hose. A few examples of the types of material frequently encountered are bricks, grease and tar, wood chips, heavy sludge found in lift stations, and sewer mains.