What is the purpose of testing backflows annually?

The primary purpose of testing backflows annually is to confirm that the assembly is working properly and is not failing. Backflow prevention devices are critical for keeping potable water supplies safe by preventing contaminants and pollutants from entering the water system. Regular testing is essential to verify that these devices are functioning as intended, ensuring that they can effectively protect against backflow events that could compromise water quality.

When backflow devices are tested annually, any potential issues can be identified and rectified before they lead to a failure in the system. This proactive approach is crucial in maintaining the integrity of the water supply and ensuring public health safety. While compliance with local regulations, extending the lifespan of the device, and reducing maintenance costs might be relevant considerations, the foundational reason for annual testing directly connects to confirming the operational integrity of the backflow prevention assembly.