Backflow Testing & Prevention in Auburn, WA
Backflow prevention assemblies protect Auburn's water supply from contamination, and most local water providers require annual testing to keep them certified. We test, repair, and document for compliance.
Keeping Contamination Out of the Supply Line
A backflow prevention assembly stops water from flowing backward into the public supply line, which matters most anywhere a property's plumbing connects to an irrigation system, a boiler, or other equipment that could otherwise introduce contamination under the wrong pressure conditions. Most Auburn-area water providers require annual testing of these assemblies to keep the property in compliance, whether residential or commercial.
Annual Testing Requirement
Local water providers generally require yearly certification, not a one-time install-and-forget device.
Common on Irrigation Systems
Any property with a sprinkler or irrigation connection likely has a backflow assembly that needs testing.
A Straightforward, Documented Process
Testing takes a specialized gauge to check the assembly's check valves and relief mechanism under controlled conditions, and results are documented for submission to the water provider or, for commercial properties, sometimes the local health department. If a test reveals a failed assembly, we can typically repair or replace it the same visit rather than requiring a return trip.
One Less Thing to Track Yourself
We keep a record of testing dates and results for properties we service annually, which means we can proactively reach out when the next test is due rather than leaving it to a property owner to track a compliance deadline on their own. For commercial properties managing multiple compliance requirements at once, that's one less date to keep on a separate calendar.
What Happens If You Skip It
A lapsed backflow test isn't just a compliance gap on paper. Many Auburn-area water providers will send a formal notice after a missed annual test, and repeated non-compliance can eventually lead to water service being restricted until the assembly is certified again. For a commercial property, that risk extends to health department standing as well, not just the water utility relationship. Staying current on testing is a small, predictable annual cost against a real, if uncommon, service disruption risk.
Residential vs. Irrigation Assemblies
A residential backflow assembly protecting the main water line and a smaller assembly dedicated to an irrigation or sprinkler system are often tested on the same visit but are technically separate devices with their own certification records. We test whichever assemblies are present on the property and make sure each one is documented individually rather than lumping them into a single report.
A double-check valve assembly and a reduced-pressure assembly are the two most common types on residential and light-commercial properties, and the correct type depends on the degree of hazard the connection presents, with irrigation systems and boilers generally requiring the more protective reduced-pressure type. We confirm the right assembly type is installed, not just tested, since an undersized or wrong-category device can fail an inspection even when it's functioning.
Common Questions
Possibly, depending on your property type and any equipment connected to the water supply, like a boiler system. Commercial properties in particular often have requirements beyond irrigation.
Most Auburn-area water providers require annual testing, though the exact requirement depends on your specific provider and assembly type.
We can typically repair or replace a failed assembly the same visit, then complete the certification testing once it's operating correctly.