What is the primary function of a booster pump?

• A. Increase water flow or pressure
• B. Filter the water
• C. Cool the pump motor
• D. Monitor water quality

Answer: (A)

A booster pump’s job is to raise the pressure in a water system so fixtures and sprinklers receive adequate flow. It overcomes the head losses from elevation and long piping runs, delivering enough pressure to the irrigation mains and emitters to meet design requirements. This function is distinct from filtering water, monitoring water quality, or cooling the pump motor, which are handled by other components or systems. In practice, you’d use a booster where supply pressure is insufficient, sizing it to provide the needed pressure at the design flow for the furthest or highest emitters.