A Centrifugal Shallow Well Jet Pump combines a centrifugal pump with a jet assembly (nozzle and venturi) located in the pump housing above ground. It works by recirculating a portion of the pumped water through the jet to create a low-pressure area, which then draws water from shallow wells (typically up to 25 feet deep). These pumps are commonly used for residential water supply from wells, garden irrigation, and boosting water pressure in homes.