What is backflow?
Backflow is the reversal of flow of water or other substances through a cross-connection into the public water system or consumer's potable water system. There are 2 types of backflow... Backpressure backflow and back-siphonage. For more information please call 512-393-8010.

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1. What is a cross-connection?
2. What is backflow?
3. What is backpressure backflow?
4. What is back-siphonage?
5. Why does the Water / Wastewater Utilities Department need to control cross-connections and protect its public water system against backflow?
6. What should a water supplier 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 pressure zone assembly?
10. What is a double-check valve assembly?
11. What is a hose bibb vacuum breaker?
12. Where can I get more information about cross-connection control?
13. Why do backflow preventers have to be tested periodically ?
14. Why does a soft drink dispensing machine require backflow protection?