Water is emitted through foam generators during a biennial fire suppression system test, Feb. 19, 2015 at Ramstein Air Base, Germany. There are two water storage tanks, each of which takes approximately 26 minutes to empty and run through the drainage system. ( Air Force photo/Airman 1st Class Larissa Greatwood)

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Size: 1815px × 1376px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

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