Dowa Line has been running its Alfa Laval PureBallast 3 ballast water treatment systems since they were installed in 2015. Simple, crew-friendly operation and U.S. Coast Guard type approval are two of the key reasons why Dowa Line is satisfied and ready to install additional PureBallast 3 systems. Shigetaka Inoue, Managing Director of the Marine Technical Department of Dowa Line shares his views. Read more about PureBallast at http://www.alfalaval.com/pureballast