High pressure flushing to remove blockages in sewer main
High Pressure Flushing
uses high-pressure water to flush out stone, sediment or
other unwanted material from the sewer. Our sewer
cleaning trucks can generate 2,000 psi of water pressure
with a flow rate of 65 gallons or more per minute.
As comparison, a typical household gas engine pressure washer can produce around 2,000 psi of pressure, but only with a flow rate of around 2.5 gallons per minute. It is the combination of high pressure and high flow rates that cleans the pipe. A flushing nozzle is installed on the end of the jet truck’s hose and the hose is lowered into the downstream manhole of the sewer section being cleaned.
Root Cutting Saw
High Pressure Jetting
All cut up roots and debris is flushed down to the manhole where it is removed from the sewer system. There are a variety of root cutters to clean sewers ranging from 6 to 14 inches in diameter. Although bucket machines can be used to clean smaller pipes, we prefer to use root cutters because they are fast, efficient and cause less "trauma" to the pipe.
High Pressure Sewer Main Flushing Video
As the nozzle moves up and down the pipe, it dislodges sediment, stone and other debris and flushes it downstream to the manhole, where it is removed from the sewer.
There are a variety of cleaning nozzles, each tailored for removing certain materials from the sewer system. Some examples are penetrating nozzles, which have one frontward facing nozzle to penetrate a blockage and break it up and spinning nozzles, which spin and scour the pipe walls during cleaning. A culvert nozzle is used to clean pipes in excess of 15 inches in diameter, because all of the jets are located on the bottom of nozzle.