A wall-installable macerator pump includes a tank, which is configured to house a macerating assembly. The width of the tank is configured to be positionable inside a cavity defined inside a wall. The macerating assembly comprises a motor, a pump cavity, and a chopper pump positioned inside the pump cavity. The motor receives sewage material through a sewage inlet, and sullage material through a sullage inlet, where the sewage inlet and the sullage inlet are positioned on the tank. The pump cavity receives the sewage material and sullage material, and a combination of the sewage material and sullage material defines a combined waste. The chopper pump positioned inside the pump cavity macerates and pumps the combined waste through a discharge outlet positioned on the tank.