What is the minimum residual pressure that should be monitored?

The minimum residual pressure that should be monitored is 20 psi. This pressure is critical for ensuring that there is an adequate supply of water to effectively operate fire hoses and other firefighting equipment in an emergency situation. Maintaining at least 20 psi helps to ensure sufficient flow and pressure to combat fires while also protecting against the risks of cavitation, which can occur if the pressure drops too low. This standard is supported by national fire protection guidelines and best practices in fire service operations, as it assists in maintaining effective firefighting capabilities. Monitoring this pressure level is essential in ensuring the safety of both the firefighters and the public during operations.