What is backflow preventer testing?

It's The Law

Backflow prevention must be used to protect the potable water supply
Backflow Prevention Assemblies must be installed by a licensed plumber or licensed irrigator
Backflow Prevention Assemblies must be tested upon installation and annually
Backflow Prevention Assemblies can only be tested or repaired by a licensed backflow tester

Backflow Preventers

Double Check (DC)
Reduced Pressure Principle (RP)
Pressure Vacuum Breaker (PVB)
Spill-Resistant Pressure Vacuum Breaker (SVB)

Backflow Testing Pricing

Single Test $97
Multiple Test $85