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Backflow is the flow of water in the wrong direction from a customer's water system into the public water supply. Backflow may be caused by back pressure or back siphonage.
A backflow preventer is a mechanical device that prevents water from entering the public water supply. When an irrigation system using reclaimed, pond or well water is present, backflow devices are required on the JEA drinking water line to prevent water from these auxiliary systems from contaminating the public drinking supply.
Residential Backflow Prevention Devices
Since 1990, the Florida Building Code has required that residential irrigation systems have a backflow preventer. The state requires that homeowners have the device tested every two years to prevent contamination of the public drinking water.
Learn more about Residential Backflow Requirements
Commercial Backflow Prevention Devices
The City of Jacksonville Building Inspection Division has required the installation of backflow preventers on all commercial fire sprinkler service lines, irrigation lines and potable water lines. Commercial assemblies must be tested every year.
Learn more about Commercial Backflow Requirements
Qualified Backflow Prevention Vendors List
JEA’s qualified vendor program is offered to customers for their convenience in choosing a vendor who meets our requirements to test, repair, replace and install backflow preventers.
Find a JEA Qualified Backflow Prevention Vendor
For More Information
Empowering Our Community
At JEA, community and service go hand in hand. Our employees volunteer their time and serve in several organizations throughout Jacksonville.