How often do backflow assemblies need to be tested?

Backflow assemblies must be tested at the time of installation, annually (once a year) after installation, after repairs and after relocating or replacement. When Silverton customers have their backflow assemblies tested, a test report will be submitted to the City of Silverton Cross Connection Specialist by the tester. 


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1. What is a cross connection?
2. How do I know when my assembly needs to be tested?
3. How often do backflow assemblies need to be tested?
4. Do I currently have adequate backflow protection? How can I find out?
5. What is the legal basis for a cross connection control program?
6. What is the responsibility of a building owner, property manager and water supplier?
7. What are some common examples of residential cross connections?
8. What is backflow? Why is backflow protection necessary?
9. What is a backflow assembly?