Other / Not Specified, Other Business Sandy, UT – Quick work of sprinklers and firefighters save day spa from overnight fire December 18, 2014 viking210 Sandy firefighters credit a sprinkler system, along with their own quick response, for limiting a potentially major early Thursday morning blaze inside a commercial area. Crews were dispatched to the Sego Lilly Spa, 7475 S. Union Park Ave., at 4:19 a.m. Thursday. Once the flames were doused, it was determined the fire was sparked by a malfunctioning commercial dryer. The fire-suppression sprinkler system kept the blaze to one room until firefighters arrived