What is the main purpose of flow testing hydrants in fire service?

The main purpose of flow testing hydrants in the fire service is to determine the quantity, rate, and gallons per minute (GPM) flow that the hydrant can provide. This information is critical for fire department operations, as it helps firefighters assess whether the available water supply is adequate for combating fires in a given area. By measuring the flow capacity, fire services can make informed decisions about resource allocation during an emergency, ensuring that they can effectively tackle different scenarios based on the water supply.

Additionally, understanding the flow rate helps in calculating the necessary hose sizes and determining the required pump pressure to adequately deliver the water needed for firefighting efforts. This data is essential for firefighting strategies, planning training exercises, and evaluating areas that may require additional water sources or infrastructural improvements.