How would a backflow issue occur with a lawn irrigation system?

A backflow issue exists if a lawn irrigation sprinkler malfunctions and a city water main breaks at the same time. When the water pressure drops, it creates a vacuum that sucks some water, which may be contaminated, into the city water supply. An example of this situation would be if a homeowner found worms, along with rust, and other debris in his bathtub when he filled the tub. These contaminants came into the water system after a contractor installed a sprinkler system and used an unapproved atmospheric vacuum breaker. When the sprinkler system malfunctioned and the city water main broke, it created the suction that pushed the contaminated water into the bathtub.

Show All Answers

1. What is backflow?
2. What is a cross-connection?
3. What is the most common form of cross-connection?
4. Is Red Oak the only city in Texas enforcing backflow regulations?
5. What is a cross-connection control program or a backflow prevention program?
6. What is a backflow preventer and why are they needed?
7. What is a Customer Service Inspection (CSI)?
8. Who needs a backflow preventer?
9. Must my home or business have backflow prevention?
10. How would a backflow issue occur with a lawn irrigation system?
11. How would a backflow issue occur in a commercial building?
12. Why does a soft-drink dispensing machine require backflow protection?
13. Is my home or my business “grandfathered” in?
14. Why is the City responsible for enforcing the rules, since they are State of Texas (TCEQ) rules?
15. Who is responsible for the testing and maintenance of the backflow prevention assembly?
16. When are backflow devices required to be tested?
17. Why do backflow devices have to be retested?
18. Who do I call to have a test completed?
19. What will a test cost?
20. Who can I contact for more information on backflow prevention?