What is a backflow?

Backflow is when a building’s nonpotable water flows in an unwanted direction and back to the City’s clean water supply. This contaminates the clean water and poses a significant threat to health. Industries and businesses that use a lot of water are more at risk of backflow than residences that use considerably less water. Fortunately, there is an effective way to prevent backflow.

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1. What is a cross-connection?
2. What is a backflow?
3. What causes backflow?
4. What can I do to safeguard my building/facility from backflow?
5. How can I get my backflow preventers tested for compliance?
6. What backflow preventer is right for my building/facility?
7. Are backflow preventers required by law?
8. What is a backflow prevention assembly?
9. Why did I receive a letter stating that I need to install a backflow assembly?
10. I received a notice of non-compliance that stated I didn't have my backflow tested, repaired, or installed. What do I do?
11. What happens if I do not comply with the requirements?