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. See a List of Approved Testers(PDF, 137KB) - (updated periodically).
Call 704.391.5188 or email our backflow team.
Mark T. Bullins
Environmental Compliance Manager-Backflow Prevention
List of Approved Testers(PDF, 137KB)
Backflow Blog and FAQ