Jim Tyndall, Plumbing Design and Installation Inc. plumber, prepares to connect pieces of pipe in the wall during plumbing installation inside the Jefferson Chambers dormitory kitchenette at Ellsworth Air Force Base, S.D., July 15, 2013. Planning and installing a plumbing system that is quiet, efficient and leak-free is essential to optimal operation and aids in cost efficient maintenance. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)