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Irrigation System Information

  

Did You Know???
Many automatic irrigation systems are set to use more than 15,000 gallons of water each month?  Or that an irrigation zone can use up to 12 gallons a minute?

smart irrigation program

Calculate and track how much water your yard uses.
(requires registering with NC State University's research group).

How much water does my irrigation system use? (pdf)

Is your irrigation system connected to your residential water meter instead of a separate irrigation meter?  Click here for examples of water bills.

If your water bill was higher than expected, you may want to get your irrigation system audited by a certified landscape irrigation auditor.  They can find ways to keep your lawn green while using less water.  Irrigation Audit Guidelines

Important Change To Irrigation Installation Rules (Click Here):

According to state law (House Bill H2499), all irrigation systems installed after July 1, 2009 must be connected to a separate irrigation meter.

Also any irrigation design, construction and maintenance exceeding $2500 must be performed by a licensed irrigation contractor unless the installation  work is performed by the property owner (exclusions for agricultural and nursery operations). 

Visit North Carolina Irrigation Contractor's Licensing Board (www.nciclb.org) for details.

Irrigation Installation Note: Check water pressure during installation.  If water pressure exceeds 80 psi, consider installing a pressure reducing valve (prv) to protect the irrigation plumbing for potential leaks or damage over time.


When installing an irrigation system, residential customers in Charlotte-Mecklenburg are required to install and maintain a backflow prevention assembly on their water line to ensure the safety of the surrounding community.

Irrigation Standard Details for Licensed Installers



More Information

Learn more about watering your lawn safely and efficiently!

Back to backflow prevention home

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