Do I Need a Pressure Tank With a Shallow Well Jet Pump?

The Pressure Tank’s Role

A pressure tank acts as a buffer between the shallow well jet pump and the plumbing system, allowing the pump to run less frequently and reducing wear and tear. With a pressure tank, the pump can operate at a lower duty cycle, extending its lifespan and reducing energy consumption. Typically, a pressure tank with a capacity of 20-40 gallons and a minimum cut-in pressure of 30-40 PSI is suitable for most shallow well jet pump applications.

Factors Influencing Pressure Tank Needs

The depth of the well, the pump’s suction lift, and the desired water pressure all impact the need for a pressure tank. In general, if the well is shallow (less than 30 feet deep) and the pump has a short suction lift, a pressure tank may not be necessary. However, if the well is deeper or the pump has a longer suction lift, a pressure tank can help maintain consistent water pressure and flow rates. Additionally, if you plan to run multiple fixtures or appliances simultaneously, a pressure tank can help prevent pressure drops and maintain a stable water supply.

Pressure Tank Installation Considerations

When installing a pressure tank with a shallow well jet pump, ensure that the tank is properly sized and configured for the system. This includes selecting a tank with a suitable capacity and cut-in pressure, as well as ensuring that the tank is properly primed and filled with water. Additionally, consider installing a check valve between the tank and the pump to prevent backflow and ensure that the pump remains primed.