Some area’s in MA and NH are now requiring sprinkler systems. Many area’s like where I live don’t have city water systems. If you live more then x-miles from a water source, then you may be required to install a sprinkler system. That means your Well now has to have a flow rate that can handle a sprinkler. Some people had to dig new Wells (or deepen the Well they have) to accommodate the new sprinkler requirement.
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Sprinkler systems are required in new construction here as well. Or the bane of would-be remodelers, any time there’s a change to the roof design in existing construction. One day I was on a walk-a-bout passing a new house under construction. Trench recently dug, have to look, man-thing, I notice at bottom of trench there is a huge 3 " PVC water pipe running from the sidewalk water-meter to the house. Odd, b/c the 3" pipe connection at the water meter is only 3/4 " … lol … contractor happened by so I ask. He laughs, says he knows converting from a 3/4 " pipe to a downstream 3" pipe looks plain crazy, but the code requires it. Done so there’s plenty of pressurized water in the 3" pipe waiting to go for the sprinkler system.
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