Senior Airman Joshua Peterson, 28th Civil Engineer Squadron water and fuels systems technician, attaches a nozzle to a hard wall hose during maintenance at Ellsworth Air Force Base, S.D., June 27, 2012. The hose is used to vacuum out debris such as leaves and garbage to prevent the sewer system from being clogged. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)