181st Intelligence Wing, Civil Engineers receive training on Reverse Osmosis Water Purification Unit (ROWPU) operations during Exercise Silver Flag, Tyndall AFB, Fla., March 26, 2013. ROWPUs use a series of filtration devises to purify non-potable water into drinking water and can be used either at new airfields or during domestic disaster response. (U.S. Air Force photo by Maj. Frank Howard/Released)
Maj. Frank Howard
Taken on 26 March 2013
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/896530">https://www.dvidshub.net/image/896530</a>