The city of Woodbury in accordance with the state of Minnesota requires annual testing of all irrigation system backflow devices.
Backflow testing requirements are designed to keep customer drinking water safe and free of contaminants. All customers who are connected to the city water system with a backflow assembly are required to test this equipment on an annual basis to prevent the risk of backflow contamination.
Click Here to view city of Woodbury requirements
Click Here to view state of Minnesota plumbing code
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