I have a water treatment plant with 3 tanks, 9 feet in diameter. The fire protection contractor feels we need to install a sprinkler under each tank, following the greater than 4 wide rule for obstructed construction. The tanks are located on a concrete floor. The tanks are supported on legs, and the clearance from the bottom of the tank to the floor is about 2 feet.
Remembering that code tells us where to install sprinklers; my argument is this is not an occupiable space and sprinklers are not needed. The tanks are part of a water filter system, and not a hazardous type chemical storage.
Are sprinklers required underneath these tanks?
Any thoughts or input is most graciously appreciated.
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