Why do Backflow Assemblies have to be tested on an annual basis?

Backflow assemblies have internal seals, springs, and moving parts that are subject to fouling, wear, or fatigue. Because of this, all backflow assemblies must be tested on an annual basis with a calibrated test gauge to ensure that they are functioning properly.

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1. Why do I need to install a Backflow Assembly?
2. Why do Backflow Assemblies have to be tested on an annual basis?
3. What is a Backflow Assembly?
4. Who is responsible for the test and any fees associated with the test?
5. Where do I install the Backflow Assembly?
6. Do I need to have the installation of the Backflow Assembly inspected by the Compliance Department at Padre Dam?
7. Will I be notified prior to my required Backflow Assembly annual test date?
8. Where in Padre Dams Rules and Regulations can I find more information?
9. What are the most common cross-connections found?
10. What Testing Company should I pick? Is one better than the other?
11. Can I get an extension on my test?
12. Where can I find more information about cross-connection control and backflow assemblies?
13. Where will my annual testing notification be mailed?