6
High Pressure Water Jetting
High pressure water jetting is the utilization of high pressure water combined with sufficient water flow to remove debris in drain/sewer
pipes . High pressure water jetting can also be used to remove debris on surfaces .
A high pressure water jet consists of a pump, a motor or engine, a length of high pressure hose, and a various assortment of nozzles .
A pipe is cleaned with a high pressure water jet by directing water pressure and flow through a nozzle . Controlled water pressure and
flow propels a water jet through the sewer pipe, allowing it to remove and wash away the obstruction (see Fig . 1) .
Ideally, a sewer pipe is cleaned from the lower end of the pipe and the hose propels itself to the higher end of the pipe . By slowly
withdrawing the jet hose, the water pressure and flow cleans the line most effectively . When it is impossible to clean from the lower end
of the pipe, the pipe must be water jetted several times to remove all the debris . A skilled operator can effectively clean a drain/sewer
regardless of the obstacles in the way .
HOW A JET WORKS
Penetrating Nozzle 70700670
Nozzle to be used for initial penetration of sewer pipe .
Closed Nozzle 72705400
Nozzle to be used for thorough cleaning of sewer pipe .
FIG. 1
