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The Backflow Files: School Water Contamination
A Kentucky school water contamination case shows why backflow preventers matter. Learn how a missing device allowed glycol from an HVAC system into drinking water.
3 min read


Backflow Testing by Area Code: Serving 425, 253, 509 and Beyond
Backflow Testing in 425, 253 & 509 Area Codes | Certified Backflow Testing
4 min read


Backflow Testing in Spokane, WA: What Property Owners Need to Know
Backflow testing is one of the most important water safety requirements for homes, businesses, HOAs, apartment communities, schools, medical facilities, industrial properties, irrigation systems, and commercial buildings in Spokane.
6 min read


Summer Backflow Testing Is Well Under Way: What to Do If You Still Need Your Annual Test
Peak backflow testing season is halfway over. Certified Backflow Testing helps with annual testing, final notices, second-opinion testing, repair, retesting, and report submission.
4 min read


The Backflow Files: The Day the Soda Tasted Like the Sea
A 1981 Norfolk, Virginia case shows how a failed backflow preventer allowed seawater into the public water system. Learn why testing, repair, installation, and retesting matter.
3 min read


The Backflow Files: Boca Raton's Drinking Water Warning
A Boca Raton drinking water case shows why backflow prevention matters. Learn how testing, repair, installation, retesting, and report submission help protect drinking water.
2 min read


Certified Backflow Testing Opens Liberty Lake Office Serving Eastern Washington and Northern Idaho
Certified Backflow Testing Opens Liberty Lake Office
3 min read


Backflow Testing in Orting: When Your Usual Tester Is No Longer Available, We’re Here to Help
If you can't reach your normal backflow tester, we're here to help.
3 min read


Certified Backflow Testing invests in innovative SaaS Solution: BATflo
Certified Backflow Testing has invested in critical technology to modernize and streamline operations: BATflo.
2 min read


Why Clearing Dirt & Debris from Your Backflow Assembly Matters!
Here in Western Washington, fall isn’t just pumpkin spice season—it’s also the time to prep your property for winter. And one often-overlooked detail? The condition of the yard box that houses your backflow prevention assembly.
3 min read


Cross connections protected by backflow assemblies including irrigation backflow testing
At first glance, your plumbing might look innocent enough. Pipes going in, water flowing out. But beneath the surface—sometimes literally—are a few sneaky connections that can put your clean water at risk.
2 min read


Winter Preparation Tips for your Backflow Assembly
Winter weather, with its plummeting temperatures and freezing conditions, can pose significant risks to plumbing systems, particularly in the context of backflow prevention.
3 min read


Welcome to the backflow testing family, Backflow Biopsy!
We are thrilled to announce the successful acquisition of Backflow Biopsy & Contracting LLC, a backflow testing and specialty contractor service provider based out of Graham, WA.
1 min read


More Puget Sound area water purveyors finding "forever chems"
King5 News reports on the latest results from a nation-wide study on "forever chemicals", which shows several local water purveyors reporting high levels of contaminants.
1 min read


What is a Certified Backflow Tester?
A certified backflow tester is a licensed professional who inspects and tests backflow prevention devices to ensure water flows in one direction only. They are trained to identify and fix issues that could contaminate drinking water. Certification requires passing a written and hands-on exam plus ongoing recertification.
1 min read


What Does It Take To Be a Backflow Tester?
In order to become a backflow assembly tester (BAT) in Washington State, one doesn't necessarily need a background in plumbing, although that definitely helps.
1 min read


The Role of Backflow Testing in Public Health
The importance of backflow testing in public health is a critical aspect of water safety management. Let's learn more about how backflow testing plays a vital role in preserving public health and preventing waterborne illnesses, with a specific emphasis on the regulations here in Washington State.
3 min read


The Rise of PFAS Contamination in Washington State
In recent years, the issue of per- and polyfluoroalkyl substances (PFAS) contamination has garnered significant attention due to its potential health risks and environmental impact.
3 min read


Can I Do My Own Backflow Test?
The importance of water safety and quality cannot be overstated. Backflow prevention plays a crucial role in maintaining the integrity of our water supply here in Washington State.
3 min read


Exploring Backflow Testing Kits
Top 5 Brands and Features . In the realm of water safety, backflow testing is a crucial practice that prevents the contamination of clean water supplies. Certified technicians rely on specialized backflow testing kits to accurately assess the performance of backflow prevention devices.
3 min read
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