Water Backflow Prevention

Backflow Prevention helps the City of Coppell ensure a safe drinking water supply for its residents. The purpose of a backflow prevention device is to keep unsafe drinking water from mixing with the potable water supply. A backflow prevention device is to be installed on:

  • All residential irrigation systems
  • Boiler systems
  • Commercial facilities where chemicals are used
  • Fire sprinkler systems
  • Other systems where drinking water could become contaminated.

Backflow Prevention Assembly Testers

Backflow registration is for one year from the date of registration or re-registration. Download the Backflow Tester Registration (PDF) or view the online version.