U.S. Air Force Senior Airman Randall Schultz, 633rd Civil Engineer Squadron water and fuel systems maintenance technician, attaches a drum to a K-50 drain cleaning snake to clear a drain line at Langley Air Force Base, Va., Nov.6, 2015. The K-50S retrieval head traps debris inside of the drain line and then clears it. (U.S. Air Force photo by Staff Sgt. John D. Strong II/Released)