Backflow Testing Requirements in California: What Homeowners Need to Know
If you own a home or business in California, backflow prevention is not optional. State and local regulations require backflow testing to protect the public water supply from contamination.
What Is Backflow and Why Does It Matter?
Backflow happens when water flows in the wrong direction through your plumbing system. Instead of clean water flowing into your home, contaminated water can be pulled back into the public water supply.
California Backflow Prevention Requirements
California Health and Safety Code requires backflow prevention assemblies on any connection that poses a contamination risk. This includes homes with irrigation systems, swimming pools, fire sprinkler systems, and solar heating systems.
How Often Do You Need Testing?
Most jurisdictions in Northern California require backflow devices to be tested annually by a certified tester. Your local water provider will typically send a notice when testing is due.
What Happens During a Backflow Test?
A certified backflow tester connects gauges to your backflow device and checks that the internal valves are sealing properly. The test takes about 15 to 30 minutes.
Common Reasons Backflow Devices Fail
Worn rubber seals, debris in the valve body, and corrosion from hard water are the most common causes of failure.
Our Backflow Testing Services
Iron Strong Plumbing provides certified backflow testing, repair, and installation across Linda, Marysville, Yuba City, Roseville, Sacramento, and Woodland. Call (530) 451-6496 or (916) 587-0589 to schedule your annual test.