How often must the water flow alarms of a standpipe system be tested?

The water flow alarms of a standpipe system must be tested quarterly to ensure they are functioning correctly and can respond promptly in the event of an emergency. Regular testing is critical for maintaining safety standards and compliance with fire codes, as it helps to identify any potential issues with the system before they become problematic during an actual fire incident. This quarterly schedule allows building management to verify the operational integrity of the alarms, ensuring that occupants and first responders are alerted effectively in case of water flow detection, which is essential for the protection of life and property. Regular testing at this interval aligns with the requirements set out in codes such as NFPA 25, which governs the maintenance of water-based fire protection systems.