When should a hydrostatic test be conducted on a standpipe system?

A hydrostatic test for a standpipe system is typically required to be conducted every five years. This testing process is essential to ensure the integrity and functionality of the system, verifying that there are no leaks and that the system can withstand the pressure it is designed to handle. The five-year interval is established to align with the guidelines set forth by NFPA 25, which emphasizes the importance of regular maintenance and testing to maintain safety standards in fire protection systems.

Conducting the test more frequently, such as annually or monthly, is not mandated by NFPA standards, as it may not provide additional significant benefits while increasing costs and operational disruptions. Similarly, waiting to conduct a hydrostatic test only if there is a suspected leak is insufficient for maintaining the system's reliability and safety, as potential issues may not be immediately visible until they become more severe. Hence, the five-year schedule ensures a balance between safety, compliance, and practicality in testing standpipe systems.