What is the advisable intake pressure for a relay pumper driver/operator?

The advisable intake pressure for a relay pumper driver/operator is typically set between 20 to 30 psi (140 to 210 kPa). This range is effective for ensuring that water is efficiently moved through the relay system without causing issues such as cavitation or inadequate flow rates.

Maintaining an intake pressure within this range allows for optimal operation, balancing the need for sufficient pressure to support the fire fighting efforts while minimizing the risk of damaging the pump or creating excessive strain on the system. A lower intake pressure could lead to problems with maintaining adequate flow, particularly over long distances, while pressures above this range can lead to complications in pump operation. Therefore, this specified intake pressure is crucial for the reliable performance of relay operations in fire service scenarios.