Col. E. John Teichert, 11th Wing and Joint Base Andrews commander, puts on waders and a protective suit as gear before going into a sewage containment hole at Joint Base Andrews, Md., Dec. 13, 2016. Teichert wanted to experience some of what the 11th Civil Engineer Squadron water and fuel system maintenance members do day-to-day. (U.S. Air Force photo by Senior Airman Philip Bryant)

Senior Airman Justin Barrett, 11th Civil Engineer Squadron water and fuel system maintenance journeyman, yells up to the crew on top while replacing a pair of lift station pumps inside a sewage containment hole at Joint Base Andrews, Md., Dec. 13, 2016. This particular hole supports hangars on the east side of base. (U.S. Air Force photo by Senior Airman Philip Bryant)

Col. E. John Teichert, 11th Wing and Joint Base Andrews commander, prepares to get into a sewage containment hole at Joint Base Andrews, Md., Dec. 13, 2016. Teichert assisted a 11th Civil Engineer Squadron water and fuel system maintenance member with replacing the lift station pumps on the east side of base. (U.S. Air Force photo by Senior Airman Philip Bryant)

Col. E. John Teichert, right, 11th Wing and Joint Base Andrews commander, descends into a sewage containment hole to Senior Airman Justin Barrett, left, 11th Civil Engineer Squadron water and fuel system maintenance journeyman, in order to replace a pair of lift station pumps at Joint Base Andrews, Md., Dec. 13, 2016. The sewage containment hole is approximately 25 feet deep and 7 feet wide. (U.S. Air Force photo by Senior Airman Philip Bryant)

Col. E. John Teichert, right, 11th Wing and Joint Base Andrews commander, pumps out sewage water from the bottom of a sewage containment hole with Senior Airman Justin Barrett, left, 11th Civil Engineer Squadron water and fuel system maintenance journeyman, in order to replace a pair of lift station pumps at Joint Base Andrews, Md., Dec. 13, 2016. Sewage water at the bottom needs to be pumped out through a large vacuum before the lift station pumps are put in. (U.S. Air Force photo by Senior Airman Philip Bryant)

Col. E. John Teichert, 11th Wing and Joint Base Andrews commander, unzips his protective suit after getting out of a sewage containment hole at Joint Base Andrews, Md., Dec. 13, 2016. Teichert wanted to experience some of what the 11th Civil Engineer Squadron water and fuel system maintenance members do day-to-day. (U.S. Air Force photo by Senior Airman Philip Bryant)

Senior Airman Justin Barrett, 11th Civil Engineer Squadron water and fuel system maintenance journeyman, removes his gloves after replacing a pair of lift station pumps at Joint Base Andrews, Md., Dec. 13, 2016. Plastic gloves, waders, protective suits, eye protection, lift harnesses and hardhats are worn to ensure safety on the job. (U.S. Air Force photo by Senior Airman Philip Bryant)