How is a flowmeter tested?

Testing a flowmeter is crucial to ensure its accuracy and reliability. The correct approach involves connecting a hoseline equipped with a solid stream nozzle to each discharge being tested. This method allows for measuring the actual flow of water being discharged from the pump under controlled conditions, which provides real-time data about the flow rate.

Using a hoseline with a solid stream nozzle simulates firefighting conditions and allows operators to visually check the flow while obtaining measurable data. The results can be compared against the flowmeter readings, ensuring that the flowmeter is delivering accurate information about the water flow.

In contrast, while a digital reading device can show data, it does not directly test the accuracy of the flowmeter itself. Calibration against a known standard is generally a separate procedure that may involve adjusting the flowmeter, and checking for leaks is important for ensuring the system's integrity but does not specifically assess the flowmeter's performance. Thus, connecting a hoseline equipped with a nozzle is the most effective method for testing flowmeters in practice.