How often does a backflow preventer need to be tested?
In California, backflow prevention assemblies must be tested at least once a year. They also need a test right after installation, after any repair, and after being moved. Your water district sets the exact due date and usually mails a notice before it.
What if I miss my test deadline?
Water districts typically send a reminder, then a final notice. Continued non-compliance can lead to fees and, in some districts, interruption of water service. If your deadline is close, contact us and mention the date.
Will my water be shut off during the test?
Briefly. The tester has to close the assembly's shutoff valves to take readings, so water downstream is off for a short time, usually just a few minutes per assembly.
What happens if my device fails the test?
We tell you which part failed and why, and give you a price before any work. Most failures are fixed by cleaning or rebuilding the check valves or relief valve with manufacturer parts. After the repair we retest and file the passing report. See backflow repair.
Can anyone test a backflow device?
Only a certified backflow prevention assembly tester. Most water districts also require the tester to be on their approved list and to submit results on the district's form or online portal.
Does someone need to meet the tester?
Usually not. If the assembly is accessible, we can test without you on site. We just need gate codes, keys to any locking cage, and a contact number in case we find a problem.
Do you send the results to my water district?
Yes. We submit the test report to your water district in the format it requires and send you a copy for your records.
How much is a backflow test?
It's $105 per device under 4 inches and $175 for 4 inches and up. Filing with your district is included. If a repair is needed, you get that price before we start.
Should I repair or replace a failed backflow preventer?
Repair, most of the time. A rebuild kit fixes the majority of failures. We'd only suggest a new one if the body is cracked, parts aren't available, it was stolen, or your property now needs a different type. More on replacement.
Do homes need backflow testing?
Plenty of homes do, usually because of a sprinkler system, a fire sprinkler line, a pool fill or a well. If you got a notice, your district already has a device on file for your address.