What kind of flow rate does a red hydrant indicate?

A red hydrant indicates a flow rate of less than 500 gallons per minute (gpm). This classification is important for firefighters as it signifies that the water supply from that hydrant may be limited, which could affect firefighting tactics and operations. Knowing the flow rate in advance helps fire crews plan for adequate water supply during an emergency, especially in situations where high-volume water delivery is crucial for effective fire suppression.

This color-coding system is designed to quickly communicate the capabilities of hydrants at a glance, allowing for faster decision-making in critical circumstances. The indication of a red hydrant typically means lower water availability which might necessitate the use of additional resources or alternative water supply methods during firefighting efforts.