What are backflow prevention devices?

Backflow prevention devices keep unwanted bacteria, chemicals, and other contaminants from entering the drinking water supply.  They function to eliminate the possible flow of water potentially exposed to contaminants back into the drinking water supply in the event of a change in water pressure. This cross-contamination comes from connections such as sprinkler systems, hot tubs, hose bibs, or ornamental ponds.

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1. When can I water my lawn?
2. What are backflow prevention devices?
3. Why do I sometimes see Benbrook Water Authority employees open fire hydrants?
4. What can I flush down the toilet and put down the drain?
5. How can I manage my water use?
6. What is the relationship between the City of Benbrook and Benbrook Water Authority?
7. Why do you charge for trash and recycling services?
8. How is my water meter read?
9. Where does my water come from? How is it treated?
10. What do I do if I have a sewer backup at my home?
11. What is a water main break? What do I do if there is one in my neighborhood?
12. How do I get access to Baja Beach at Benbrook Lake?
13. Why wasn’t my trash/recycling/brush/bulk items picked up on trash day?
14. What causes taste and odor in my water?
15. Why is my water cloudy?
16. Why was my water shut off without notice?