Petty Officer 2nd Class Joshua Lockwood, of Coast Guard Station Ocean City, Maryland, performs a fresh water flush to clean out and test the engine of the station’s 24-foot Special Purpose Craft – Shallow Water, Aug. 29, 2014. Crew members replace the oil on the station’s boats as part of regular preventative maintenance. (Coast Guard photo by Petty Officer 2nd Class David R. Marin)
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