Let it flow
Airman James Hanna, a 100th Civil Engineer Squadron utilities system operator apprentice, flushes a fire hydrant to clear the water line Nov. 3, 2008, at RAF Mildenhall, England. Airman Hanna performs the flush to ensure proper water pressure and flow. This check is done annually to all fire hydrants to establish serviceability. (U.S. Air Force photo by Staff Sgt. Jerry Fleshman)