What is Backflow Testing and what do Backflow Prevention Assemblies (BAT) do?

Backflow Prevention Assembly testing and repair is needed to ensure a safe drinking water supply.

What is backflow?

Backflow is the reversal of flow of water back to the source from which it came. This can pose to be a major public safety concern if the water is contaminated when it returns to the source of water.

What is a Backflow Prevention Assembly?

Backflow Prevention AssemblyA Backflow Prevention Assembly is a mechanical assembly that prevents contaminated water from flowing out of common systems (such as but not limited to Landscape Irrigation, Fire Suppression and Boiler Systems) back into the drinking water supply.

Why do backflow prevention assemblies have to be tested periodically?

All backflow prevention assemblies have calibrated internal components that break over time. Common components such as the springs, seals, and various moving parts inside your backflow prevention assembly will eventually wear-out or fatigue. Periodic testing is the only way to ensure that your backflow prevention device is in proper working order.

Why do I need a Backflow Prevention Assembly Test?

  • Backflow prevention programs are in place to protect your drinking water from contamination.
  • To insure that your backflow prevention assembly is in proper working condition.
  • A backflow prevention assembly is a mechanical assembly that will at some time fail.
  • It’s the law WAC 246-290-490.

Where would my backflow prevention assembly be located?

Residential Backflow Testing

Residential Irrigation Backflow Prevention Assemblies are commonly found in a green box near the meter

Boiler Heating System Backflow Prevention Assemblies

Boiler Heating System Backflow Prevention Assemblies are commonly found near the boiler itself

Residential Fire Sprinkler System Backflow Prevention Assemblies

Residential Fire Sprinkler System Backflow Prevention Assemblies are commonly found in the garage on the wall sometimes by the water heater. It is often between orange piping.

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Additional Backflow Links & Resources

Backflow Manufacturer’s Links

Please feel free to ask us any questions you may have about your backflow prevention assembly!