Definition - What does Water Jetting mean?
Water jetting, in the context of trenchless technology, can be defined as an internal cleaning mechanism of the cutter head of drill machines where nozzles spray water at a high rate of pressure to remove cohesive soils. Water jetting is also used for cleaning drains. Horizontal drilling machines and auger boring machines employ the use of cutter heads during the excavation process.
Trenchlesspedia explains Water Jetting
When cutting through cohesive soils, cutter heads get caked with soil. The internal water jetting capability keeps the cutter free of debris and in good working order. Water jetting is also a process used in the cleaning, or clearing, of drains where a blockage is detected. In such cases, a hose with a high-pressure nozzle is introduced into the drain. This pushes away the debris into the main sewer line and cleans the pipe. These units are fitted with rotating water jet cutting heads that remove grease, silt, sand and roots.