SUMO is the fastest filling ballast system in the industry! Equipping your boat with SUMO means less time filling and more time riding your massive wake! All of our SUMO ballast is easy to use, durable and convenient. Sumo ballast is designed to work as a plug ‘n play option with your factory ballast system or on deck with our high speed SUMO pumps. We offer an extensive selection of ballast bags to fit any boat or budget.