What is a backflow preventer and why are they needed?

A backflow prevention assembly is an approved, testable assembly that uses valves to prevent potential contaminants from flowing into the drinking water system. Two commonly required devices are the Double Check Valve Assembly (DCVA) and the Reduced Pressure Valve Assembly (RP). Both devices protect drinking water systems from backflow.

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1. Why is the City doing this now?
2. What is backflow?
3. What is Cross Connection?
4. What is the most common form of cross connection?
5. What is a backflow preventer and why are they needed?
6. Who needs a backflow preventer?
7. How often does my backflow preventer need to be tested?
8. Who is responsible for the testing and maintenance of the backflow preventers?
9. Who can test backflow preventers?
10. Who can repair backflow preventers?
11. What is a TRAC # ?
12. How much will a backflow test cost?
13. What happens if my backflow test fails?
14. What happens if I don’t have my assembly tested?
15. Who can I contact for additional information on the City of Fayetteville’s Cross-Connection Control and Backflow Prevention Program?