A backflow prevention device prevents hazardous substances from inadvertently being drawn into the drinking water system, contaminating it.
All backflow prevention devices must be tested once a year by an approved tester. See a List of Approved Testers(PDF, 136KB) - (updated periodically and sorted by zip codes to find one near you for your convenience. You may select any approved tester to perform the test).
Mark T. Bullins
Environmental Compliance Manager-Backflow Prevention
Mark.Bullins@charlottenc.gov
704.432.5800
Smart Irrigation
Backflow Construction
List of Approved Testers(PDF, 136KB)
Backflow Blog and FAQ