Bothell · King County, WA

Backflow Assembly Testing in Bothell

Washington's cross-connection control rule (WAC 246-290-490) requires every backflow assembly in Bothell — from Canyon Park to Downtown Bothell — to be tested annually by a state-certified tester, with results filed to your water purveyor. Prolific tests, tags, and files it, so the deadline never becomes a shut-off notice.

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Why Bothell requires annual testing

Under WAC 246-290-490, your water purveyor must verify that every backflow prevention assembly protects the public water supply. Miss the annual test and you risk a water shut-off. Our BAT-certified testers handle reduced-pressure (RP) and double-check (DC) assemblies and submit the report for you.

What's included

Annual test of all RP / DC backflow assemblies on site
State-certified Backflow Assembly Tester (BAT)
Repair or replacement quote if an assembly fails
Results filed directly with your Bothell-area water purveyor
Tag + dated documentation for your compliance file

$149per year · members save ~15%

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Bothell compliance questions

Who has to do backflow testing in Bothell?

Any property in Bothell with a backflow assembly must test annually under WAC 246-290-490, by a certified tester.

Do you file the results with the water district?

Yes — we submit the test report directly to your Bothell-area water purveyor.

Backflow Assembly Testing in Bothell

Why Bothell requires annual testing

What's included

Bothell compliance questions

Backflow Testing across King County

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