A fire truck making its way to a scene, sirens blazing, is a common sight in cities and towns across America. But within the Milwaukee Fire Department (MFD), there's a support staff responsible for maintaining all the equipment firefighters depend on. For this week's Bubbler Talk — our series that allows you to ask WUWM questions about Milwaukee —questioner Jay Blanchett wanted to know about a special kind of fire truck: Why, since I’ve lived here for 22 years now, I have never seen a tiller truck in the Milwaukee area? While looking into Jay's question, we were able to learn about a whole, less publically known division of the fire department. John Litchford, the deputy chief of the MFD’s Construction and Maintenance Division, invited us to the repair shop facility.