Venturi nozzles, also known as ejector nozzles use the water coming from a pressurized hose. The water is smoothly turned around into an ejector thus creating a vacuum in the suction barrel. The high performance of the Venturi nozzle is only guaranteed if sufficient operating water is available, meaning there has to be continuous water flow in the line. Depending on the size of the sewer or stormwater line, the Venturi nozzle must be completely submerged under water because the water level drops significantly once the Venturi nozzle has been put into operation. USB-Sewer Equipment Corporation utilizes one concentrated water jet (one thick bundled jet provides a much higher efficiency than six small, thin water jets). The ejector connected to the high pressure stainless steel pipe is centered in front of the suction pipe and secured with flat, stainless steel bars. This eliminates the risk of debris blocking the suction pipe and / or damaging the ejector. The vacuum removes tremendous quantities of material towards the manhole in large sewer and storm lines with high flow.
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