What is a cross-connection?

A cross-connection is a physical connection (piping configuration) between the drinking water system and anything else, including another water supply, that could allow pollutants or contaminants to backflow into the individual or public drinking water system.

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1. What is backflow prevention?
2. What is a backflow prevention assembly?
3. What is a backflow prevention device?
4. Do backflow prevention assemblies and devices need to be tested?
5. Why must backflow prevention assemblies be tested?
6. What happens after my backflow assembly has been tested?
7. What is a cross-connection?
8. What is backflow?