What is the recommended minimum operating pressure for water coming from a fire hydrant?

The recommended minimum operating pressure for water coming from a fire hydrant is established to ensure effective operation and adequate water supply for firefighting. A minimum of 20 psi is considered essential because this pressure guarantees that adequate water can be delivered to fire hoses and equipment, ensuring that firefighters can effectively combat fires.

Fire hydrants are designed to provide a specific flow rate required to operate the nozzle and achieve an effective firefighting stream. If the operating pressure falls below this minimum threshold, it can result in insufficient water flow, which compromises operational effectiveness and safety during fire suppression activities. Therefore, maintaining a minimum operating pressure of 20 psi is crucial for optimal performance in emergency situations.