Hooking up the hose
Airman 1st Class Evan Hughes attaches the “blue juice” hose to rinse out the lavatory tank and to fill up the charge tank of a C-17 Globemaster III, Ramstein Air Base, Germany, Feb. 23, 2012. This process is accomplished on every aircraft in transit through Ramstein ensuring that every plane is cleaned prior to taking off again. (U.S. Air Force photo by Airman 1st Class Trevor Rhynes.)