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A submersible pump, which is the type most often used in drilled wells, consists of a pump and motor unit. The pump is placed directly into the well, below the water level. Jet pumps are not installed in the well, but installed above ground. Jet pumps operate by forcing water through a jet or Venturi, a narrow, cone-shaped device that creates a partial vacuum (suction) and draws water from the well into the pumping system. Shallow well jet pumps that are used where the water is less than 25 feet below the surface have the jet located in the pump itself.
A shallow well jet pump can pull water from a maximum of 25â depth-to-water. Note that it may be less in higher altitudes. In the mountains it could be as little as 18â to 20â A deep well jet pump can pull water from much deeper (as deep as 80â to 100â depending upon model and horsepower).A shallow well jet pump has the nozzle & venturi of the jet system built into the nose of the pump.In a deep well jet pump setup, the nozzle & venturi are put into an ejector package or âjet kitâ that gets placed down in the well. shallow well jet pump has the nozzle & venturi of the jet system built into the nose of the pump. In a deep well jet pump setup, the nozzle & venturi are put into an ejector package or âjet kitâ that gets placed down in the well.