What is backflow?
Backflow is the undesirable reversal of flow of a liquid, gas, or other substance in a potable water system as a result of a cross connection. To prevent backflow from occurring, a backflow preventer—either an assembly or device must be installed.

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1. What is a cross connection?
2. Why do such cross connections exist?
3. What is a Cross Connection Control Program?
4. What is backflow?
5. What is a backflow preventer?
6. Why would backflow need to be prevented?
7. How will a backflow preventer affect my plumbing system?
8. Why do backflow assemblies need to be tested periodically?
9. Will my water service be interrupted for backflow prevention assembly testing?
10. How much will it cost to have my backflow prevention assembly installed and tested?