Johnson Pump Viking Power 32 Vacuum Pump - 6.3GPM - 24V [10-13373-08]Viking Power 32 Vacuum Pump 6. 3GPM 24V The Viking Power Vacuum diaphragm pumps have been designed to meet the rigorous demands of the world's leading manufacturers of boats, recreational vehicles, and buses. The Viking Power Vacuum has double check valves and can therefore also be used in vacuum toilet systems. Naturally, pumping ordinary shower or sink drain water or bilge water is no problem for either pump. Like the Viking Power 16, this new pump