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The spring is typically located around a central shaft that is attached to the closing disk. The entire assembly is securely enclosed in a machined brass housing that contains the workings of the check valve. The check valve is generally located above the submersible pump unit by a few inches. This ensures that the long column of water remains in the well pipe. This increases the efficiency of the pump by not having to refill the length of the pipe every time the system calls for water.
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.