Johnson Pump 12V Viking Power 16 Waste Water Pump The Johnson Pump Viking Power 16 is a modern single chamber waste water pump that offers set up in several different pumpmotor configurations. The self-priming diaphragm is made of reinforced premium nitrile rubber and is able to be replaced without removing the pump from the system. Filters are unnecessary thanks to the non-choke valves. The quiet operating pump can be run dry and can handle a mixture of air and water without difficulty. Feature