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Grand Rapids — Officials say a momentary surge in water pressure caused several water main breaks in Grand Rapids.

At least six breaks were reported by the city on Thursday morning, including a 20-inch main downtown and other breaks to 6-inch mains.

The city’s water system manager Joellen C. Thompson says in a statement that the surge was caused by a malfunctioning valve that didn’t open during a pump change. The city says operators quickly reversed the procedure to minimize the issue, but the surge caused the breaks.

City crews will work to repair the breaks with help from contractors.

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