What can I do to prevent backflow?

The easiest way to avoid backflow is to eliminate cross connections between the drinking water system and contaminants. Sometimes cross connections cannot be avoided. In these cases, the installation of a backflow prevention device will stop backflow. Examples:

  • Avoid creating a cross connection when filling a bucket, hot tub or swimming pool. By leaving a gap between the hose and the water in the container, you eliminate the cross connection and the possibility of backflow.
  • Install a backflow prevention device between the lawn irrigation system and the drinking water system to prevent backflow.

Show All Answers

1. What is backflow?
2. How can cross connections and backflow affect my drinking water?
3. What can I do to prevent backflow?
4. What is a backflow prevention assembly?
5. When is a backflow prevention assembly required?
6. What is a Certified Backflow Assembly Tester and how can I find one?
7. What does it cost to test a backflow prevention assembly?
8. What are some different types of backflow prevention assemblies, devices, and methods?
9. Do I need a permit to have a backflow prevention assembly installed and is there a permit fee?
10. Who can install a backflow prevention assembly?
11. What does it cost to install a backflow prevention assembly?
12. Why am I required to have my backflow prevention assembly tested?
13. How often do backflow assemblies need to be tested?
14. Who is responsible for the testing and maintenance of the backflow prevention assembly?