Jabsco Water Puppy Pump Heavy-Duty #6-182201127 Wakeboard/Towboat Ballast Pump Flow rate: 9gpm Self-priming from dry up to 6ft •Fills a typical 180 litre ballast tank in under 5 minutes •Reversible to both fill and empty tanks •Simple design means fewer wearing parts. •ISO 8846 MARINE (Ignition protection). •ISO 8849 MARINE (Bilge pump standard). Applications: The Ballast Puppy is designed to pump water into Wakeboard Liquid Ballast Tanks and when reversed will also pump water out of them. It has a flow rate of 11 gallons per minute, so it can fill most ballast tanks in about five minutes. It is equipped with a Run-Dry Protection Device (patent pending) to automatically shut-off the pump and protect the impeller from run-dry damage should the pump be mistakenly left on after the Ballast Tank is empty.