When it comes to protecting your drinking water—and staying in fire code compliance—backflow preventer testing isn’t optional. It’s a required annual service in most Washington cities, and a critical one for businesses with sprinkler systems, irrigation, or food service setups.
At AAA Fire Protection, we provide certified backflow testing throughout Seattle, Bellevue, Renton, Redmond, Kirkland, and beyond. Here’s what local businesses need to know:
A backflow preventer is a valve system that stops contaminated water from flowing backward into the clean water supply. It’s a key part of your fire sprinkler or irrigation system.
Learn More here: https://www.aaafire.com/our-services/backflow-assembly/
Yes—Washington State and most local water districts require annual testing by a certified backflow tester. You may also be required to submit results to your local utility.
Missed or failed tests can lead to fines, water service disconnection, or delays in construction permits or fire inspections.
Certified testing with official documentation
Fast scheduling and reminder emails
One-stop service for your entire fire protection system
https://www.aaafire.com/request-a-quote/
Who needs backflow testing?
Any business with a fire sprinkler, irrigation system, or commercial kitchen typically requires annual backflow preventer testing.
How often is backflow testing required in Washington?
Backflow testing is required annually by most local water utilities throughout Western Washington, including Seattle and Bellevue.
What happens during a backflow test?
A certified tester checks your backflow assembly for proper function and submits results to your water authority. AAA Fire Protection provides on-site service and documentation.