How do I know if I need to install a backflow preventer?

Residential customers are only required to install a backflow preventer if the home has an in-ground irrigation system, well, or pool. It is the customer's responsibility to notify us if an irrigation system, well, or pool is installed. Backflow requirements vary for commercial customers based on the business's water use. Our staff reviews newly established commercial water accounts to assess the degree of backflow hazard and notifies businesses about backflow requirements.

Show All Answers

1. I received a letter saying my annual backflow test is due. What do I need to do?
2. Why are backflow preventers tested annually?
3. Do Backflow Testers work for City of Alamogordo Utilities Department?
4. How do I know if I need to install a backflow preventer?
5. What is backflow?
6. What is a cross connection?
7. What causes backflow?
8. How does City of Alamogordo Water System prevent backflow?
9. What can I do to protect my home plumbing system from backflow?
10. What is the backflow administration fee?
11. A backflow preventer was already installed when I moved into this commercial space, but I don't think I need it. What should I do?
12. I'm a renter, why did I receive a letter about the backflow preventer?
13. I received a letter saying I need to install a backflow preventer. How do I do that?
14. Examples of common sources of cross connection hazards are listed below (this is not intended to be a complete list):