Key takeaways
- Backflow devices keep irrigation water out of drinking water.
- Many utilities require yearly testing by a certified tester.
- A failed device can usually be repaired and retested.
- Freeze protection prevents most failures.
What it does
Irrigation lines can hold fertilizer, pesticides and soil. If pressure in the public supply drops, that water could be pulled backward. A backflow preventer uses check valves and sometimes a relief valve to stop it.
That is why codes require one on irrigation systems.
What testing involves
A certified tester connects a calibrated gauge kit, closes the shutoffs and measures how the valves hold pressure and open. The readings go on a report that the water utility may require. If a part fails, we repair it with new internals and retest.
The test takes about 30 to 60 minutes.
Keeping it healthy
Protect above-ground devices from freezing with an insulated cover or by draining them in fall. Keep debris out of the enclosure and keep the area clear. If you ever see water spurting from the device, shut off the irrigation supply and call.
Spring is a good time to test, combined with startup.
Related services
Quick answers
Who can test my backflow device?
A certified backflow tester. Many utilities keep a list or require their own certification, and we confirm what yours needs.
What does a test cost?
Pricing varies, and repairs add cost. We give a price before we start.
Ready to talk it through? Get a free estimate or call 615-431-3789.