How often should antifreeze system freeze point protection be tested?

Antifreeze systems in fire protection should undergo regular testing to ensure their effectiveness in preventing freeze damage. The correct answer indicates that testing for freeze point protection should occur annually. This frequency allows for a systematic check on the concentration and performance of the antifreeze solution within the system, ensuring it remains effective during colder temperatures.

By testing annually, professionals can confirm that the antifreeze mixture has not diluted or degraded over time, which can happen due to system operation or external factors. This annual regimen aligns with industry standards and best practices, as it provides a balance between maintaining system integrity and minimizing unnecessary operational disruptions.

In comparison, testing quarterly or semi-annually may be excessive for many systems, and testing solely before cold weather could leave the system unmonitored during potential issues arising throughout the year, leading to potential failures in freezing conditions. Thus, annual testing ensures a proactive approach to maintenance and reliability of the antifreeze systems.