You’ll know your backflow preventer is working properly if it passes an annual certified test, doesn’t drip from the relief valve, and doesn’t show pressure-drop or check-valve symptoms during normal use. Most homeowners can’t fully verify the unit without specialized test gauges, which is why annual testing by a certified tester is the standard.
Signs of a failing backflow preventer
- Continuous dripping from the relief valve (RPZ)
- Water spraying from the air gap or vent
- Failed annual certification test
- Pressure drop downstream of the assembly
- Freeze damage after winter
Our certified technicians test, repair, rebuild, and replace assemblies through our backflow prevention service, plus PVB service on irrigation systems.
