Fire sprinklers are a good thing to have, except when they malfunction. Which they did in some homes in the Roseville community in Northern California. The Sacramento Bee reports:

Lennar, the nation's largest home builder, has told Roseville homeowners that it will replace fire sprinklers that have flooded and ruined at least a handful of homes in the Sacramento region.

The Viking VK457 sprinkler heads and their potential for destruction were the subject of an angry community meeting last month at which one resident called the units "ticking time bombs." Others worried their homes would flood while they were at work or away.

While west Roseville residents welcome the fix, they still have anxiety. ...

... Days after the community meeting last month, Robert Tummolo, Lennar's regional president, sent an email to residents saying, "I am pleased to report . . . that we will be putting forth a Fire Sprinkler head replacement program for all Taylor Crossing and Merion Square Homes in Roseville which contain the model VK457 sprinkler head."

"We expect to begin the replacements within 2-3 weeks, with an anticipated preliminary completion time frame of 10-12 weeks from start," it said. Letters would be mailed out notifying residents when their sprinklers would be upgraded, he said.

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