How can this contamination happen?
Contamination of drinking water is usually the result of cross connections of piping between your drinking water and some other source such as irrigation well or pond. The American Water Works Association (AWWA) estimates over 100,000 cross connections occur each day; half of these from garden hoses.

Show All Answers

1. What is a cross connection?
2. What is backflow?
3. Why are backflow preventers needed?
4. Who needs a backflow preventer?
5. What is a backflow prevention program?
6. How can this contamination happen?
7. What is an indirect cross connection?
8. Why does this backflow preventer need to be installed in front of my house?
9. Can I cover or hide the backflow preventer?
10. Why do some backflow preventers need to be tested every year?
11. My backflow preventer sometimes leaks water from a relief valve. Can I remove or plug the valve to prevent water loss?