Abstract: A system for supplying drywall mud in a viscous, flowable, semi-liquid form from a container for alternately filling at least two different types of drywall mud applicator devices is disclosed. The system includes a hand pump having a body partially disposed in a quantity of drywall mud in an open top container and a two way diverter valve having an inlet port attached to a discharge port on an upper end of the pump and the two outlet ports. One of the valve outlet ports is connected to a gooseneck tube for filling a bazooka type of drywall mud applicator and tape dispensing device. The other of the valve outlet ports is adapted for connection to a charging port of conventional corner box type drywall mud applicator device. A switch on a housing of the valve switches the valve inlet ports alternately into and out of communication with each of the valve outlet ports for alternately filling both types of applicator device without need for modifying the system.