Find a Professional
Listing of professionals does not include a recommendation or certification. Want to verify a business license or endorsement? In WA go to the Department of Revenue. In ID go to the Secretary of State.
Choose from the list of professionals below by checking the boxes to narrow your search.
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Certified Backflow Assembly Testers
Please select a Backflow Assembly Tester from the list registered with your water provider. If your water provider does not have an approved list below, choose applicable state certified option at the bottom. Nerds works to ensure the lists are up-to-date but we cannot recommend a specific tester or guarantee their certification. If you are not sure who your water provider is, click here.
- Coeur d’Alene – Idaho Licensed Backflow Testers
- City of Post Falls Registered Backflow Testers
- City of Rathdrum – Backflow Testers
- City of Spokane -Back flow Testers
- Consolidated Irrigation District – Backflow Testers
- Hayden Irrigation District Backflow Testers
- Kootenai County Water District #1
- Liberty Lake Sewer & Water District
- Modern Electric Water Company
- Whitworth Water – Backflow Testers
State Certified Backflow Assembly Testers
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