Straight Line Sumo Ballast Bag Water Pump 2010: It’s a bluebird day and you want to get out on the water ASAP. Be positive you won’t be missing out by using the Straight Line Sumo Ballast Bag Water Pump whenever you need your ballast bags filled in a jiffy. This is the most powerful ballast pump on the market, and Straight Line promises those bags will be full to the brim in the blink of an eye no matter what.