A1 Backflow Prevention, LLC is Evansville's premier backflow preventer testing and repair company.  We can test, certify and repair all approved backflow prevention assemblies including; double check valve assemblies, reduced pressure principle assemblies, air gaps, pressure vacuum breaker assemblies, and spill-proof pressure vacuum breaker assemblies.

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Commercial

Residential, Commercial, and Industrial Backflow Testing 

residential

Typical Pressure Vacuum Breaker (PVB) installed on a lawn sprinkler system.​

A1 Backflow Prevention, LLC

industrial

Typical Double Check (DC) installed on a commercial fire suppression system.​

Typical Reduced Pressure Principle (RP) installed in an industrial application.

How to sign up for Automatic Annual Testing

812-402-0400 24 hours