What is the minimum pressure from a hydrant that is considered acceptable?

The minimum pressure from a hydrant that is considered acceptable is 20 psi. This pressure level is crucial for ensuring that sufficient water flow and pressure are available for firefighting operations. At 20 psi, fire personnel can effectively utilize standard firefighting hoses and equipment, which typically require a minimum of this pressure to operate effectively. This level provides a good compromise between pressure and flow, allowing enough water to be delivered to combat a fire or support suppression efforts.

Pressure lower than this minimum might not produce sufficient flow rates, making it challenging to effectively extinguish a fire or operate hydraulic tools. In contexts where reliable and effective fire suppression is necessary, maintaining a minimum pressure of 20 psi is essential for the safety and efficiency of firefighting operations.