From right, Senior Airman Andrew Burdette, 100th Civil Engineer Squadron Water and Fuels Maintenance journeyman from Victorville, Calif., discusses how to scrub the primary clarifier with Chief Master Sgt. Tracy Jones, 100th Air Refueling Wing command chief, and Airman 1st Class Justin Krah, 100th CES Water and Wastewater Plant operator from Shamokin, Pa., June 6, 2013, at RAF Mildenhall, England. The command chief took part in the "dirty jobs."