Testing process

Drinking water backflow testing is performed by a certified technician using specialized gauges to verify that your backflow preventer is working correctly and protecting the potable water supply. At Dallas Landscape & Irrigation, the tester first checks the device for visible damage, leaks, and proper valve operation.

Next, the technician connects test equipment to the device’s test ports and measures pressure changes in each internal section. These readings confirm whether the assembly is preventing contaminated water from flowing backward into the drinking water system. If the device passes, the results are documented for your records and any required city reporting.

What to expect

  • Brief system inspection before testing
  • Gauge testing of the backflow assembly
  • Verification of check valves and relief components, if applicable
  • Written test results and documentation

If your property needs a scheduled inspection or documentation for compliance, you can request an estimate from Dallas Landscape & Irrigation.