A spray pump apparatus typically employed in gardening and commercial applications wherein a charged liquid is sprayed in a garden environment or on a floor surface for removing spills, grease or stains. In its most fundamental embodiments the spray pump apparatus for use in spraying: fluids includes an outer housing and a pump assembly in mechanical communication with the outer housing for developing a pressure therein. An integral bladder assembly is mounted within the outer housing and comprises an integrally formed combination of a flexible bladder, a hose and a nozzle. The flexible bladder is subjected to the pressure developed by the pump assembly for expelling a fluid contained within the flexible bladder, wherein the integral bladder assembly is installed in and removed from the outer housing as the integrally formed combination.