SB Marine Mechanic offers professional installation and maintenance of marine engine fresh water flushing systems. Buildup with our solutions Family owned and operated business with over 30years of marine engine experience. at 17 joined the U.S. Navy were i was trained at engine-man A-school on various Detroit Diesels 671, 12V71, 892, after being discharged in 1985 i was looking fo... https://www.sbmarinemechanic.com/marine-engine-fresh-water-flushing-system/