What is a cross-connection?

A cross-connection is any temporary or permanent connection between a public water supply or consumer's potable (i.e. drinking) water system and any other source containing nonpotable water or other substances. An example is the piping between a public water supply or consumer's potable water system and an auxiliary water source, cooling system, or irrigation supply.

Show All Answers

1. What is a cross-connection?
2. What is backflow?
3. What is backpressure backflow?
4. What is backsiphonage?
5. Why do water suppliers need to control cross-connections and protect their public water systems against backflow?
6. What should water suppliers do to control cross-connections and protect their public water systems against backflow?
7. What is a backflow preventer?
8. What is an air gap?
9. What is a reduced principle assembly (RP)?
10. What is a double check valve assembly (DC)?
11. What is a residential dual check valve (RDC)?
12. Why do backflow preventers have to be tested periodically?
13. Where can I get more information about cross-connection control?