Apartment Building, Residential Wisconsin Dells, WI – Apartment fire knocked down by sprinkler system; Fire started outside unit February 20, 2017 viking210 A sprinkler system kept a small fire from being much worse last Sunday in Wisconsin Dells. Kilbourn volunteer firefighters responded to reports of an outdoor blaze at the three-building Stepping Stones complex on Vine Street near downtown. Thanks in large part to the main apartment building’s built-in, outdoor sprinkler, plus quick action with a fire extinguisher by a Wisconsin Dells police responder, the fire was mostly out by the time the firefighters arrived. “By the time we got there the sprinkler system had knocked it down pretty well,” said Kilbourn Assistant Fire Chief Pat Gavinski. The building occupants were not at home at the time, Gavinski said, and the cause of the outdoor fire is still undetermined but it did start outside. The built-in sprinkler’s role in controlling and ultimately extinguishing the blaze was certain in the mind of Gavinski and Dells Fire Inspector Jerry Wolfram