Definition - What does Jetting Vehicle mean?
A jetting vehicle is a sewer truck fitted with hoses and jet nozzles used for cleaning underground sewer pipelines using high pressure water sprayed through the nozzle. It is one of the most common methods of cleaning sewer pipelines to remove deposits and blockages from the pipes. The process is carried out from a manhole.
Trenchlesspedia explains Jetting Vehicle
A jetting vehicle, usually a truck, is equipped with a water tank, a 20 to 40 HP water jet machine, a sturdy hose and drain/sewer cleaning nozzles of varying sizes. The water jetting process works by pumping water from the tank using a high pressure pump connected to a hose with a nozzle at the end. The nozzle has holes directed toward the walls of the pipe. The initial cleaning process is directed against the direction of flow which causes a reaction of outward force at the nozzle. Once the nozzle reaches the targeted entry point, the process is repeated along the direction of flow. This helps loosen the deposits and conveys it toward the entry point. Debris is then vacuumed out with another hose.