Why do such cross connections exist?
Plumbing is sometimes installed by persons who are unaware of the dangers of cross connection. These connections are sometimes made as a simple matter of convenience, with unintended consequences. And then, sometimes they are made with reliance on inadequate protection.

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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?