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Backflow Prevention
notify me service about backflow prevention devices, testing, hydrant testing, and irrigation installation updates

General Information about Backflow Prevention

People often think water travels in only one direction through the distribution system, but under certain pressure conditions, water can actually travel backwards. If a customer's water supply line is connected to a substance not fit for drinking and the line is unprotected, then the unfit substance could travel backwards through the water distribution system.

This is known as backflow. Consider a hose submerged in a bucket of garden chemicals. If the water pressure in your area becomes lower than normal, the chemicals in the bucket can flow backwards through the hose and into your drinking water supply.

BackflowBrochure (pdf 792k)

All backflow prevention devices must be tested once a year. Click here to see a List of Approved Testers (pdf) - (updated periodically).

hose inside a bucket of water 

The key to protecting your safety is having proper backflow measures in place.

Backflow Prevention Devices
All industrial, commercial, and irrigation customers are required by city ordinance to install and maintain backflow prevention devices at every service connection to Charlotte-Mecklenburg Utility Department. 


Important Irrigation Installation Update

Other Resources
Land Use & Environmental Services Agency.  Other links within LUESA include code enforcement, reference desk, and Plans Submittal Requirements - Commercial.

For more information about backflow prevention, contact us by email  or call 704.399.2426 and ask for someone in Backflow.