Abstract: A mastic pump is provided. The mastic pump is operable to pump mastic from a container to a mastic application tool. The mastic pump includes a pump body, a piston movable within the pump body, an actuator coupled to the piston for moving the piston, and a fulcrum adjustor coupled to the actuator at one of at least two positions. The mastic pump may include a valve diaphragm having an opening defined therein to allow mastic flow. Also, the pump may include a foot stand coupled to the pump body having a concave shaped portion. In addition, the actuator may include a grip and a carrying member spaced from the grip, the carrying member is grippable to transport the pump. Further, the mastic pump may include an accessory connector coupled to the pump body for connecting and disconnecting a mastic tool accessory to the pump body without the use of tools.