The 11th Civil Engineering Squadron water and fuels shop on Joint Base Andrews maintains all of JBAs plumbing, water distribution, fire suppression and backflow systems.

Staff Sgt. Lewis Thomas, 11th Civil Engineer Squadron water and fuels systems specialist, checks a pressure gauge at Hangar 13 on Joint Base Andrews, Md., Aug. 19, 2015. Thomas and his crew were repairing the facilities fire suppression system, which is crucial for hangars that store aircraft. (U.S. Air Force photo by Staff Sgt. Chad C. Strohmeyer)(Released)

Senior Airman Dominic Koah, 11th Civil Engineer Squadron water and fuels systems specialist, opens a water valve outside Hangar 13 on Joint Base Andrews, Md., Aug. 19, 2015. In addition to repairing the facilities fire suppression system, they also checked for leaks inside and outside of the hangar. (U.S. Air Force photo by Staff Sgt. Chad C. Strohmeyer)(Released)

Staff Sgt. Lewis Thomas, 11th Civil Engineer Squadron water and fuels systems specialist, checks a pressure gauge at Hangar 13 on Joint Base Andrews, Md., Aug. 19, 2015. Thomas and his crew were repairing the facilities fire suppression system, which is crucial for hangars that store aircraft. (U.S. Air Force photo by Staff Sgt. Chad C. Strohmeyer)(Released)

Senior Airman Dominic Koah, 11th Civil Engineer Squadron water and fuels systems specialist, discusses the proper maintenance procedures with his crew member at Hangar 13 on Joint Base Andrews, Md., Aug. 19, 2015. Before maintenance could begin, the team had to ensure all the fire suppression system components were turned off. (U.S. Air Force photo by Staff Sgt. Chad C. Strohmeyer)(Released)