A combination water pump/air compressor system for performing two separate functions with one unit by providing compressed air and water. The combination water pump/air compressor system includes a piping configuration including a main pipe capable of carrying a combined compressed air and water, and also including valve members being connected to the main pipe; and also including a water and air pressure accumulator assembly being connected to one of the valve members and being adapted to be connected to water and air sources for providing compressed water to the main pipe; and further includes an air injector being connected to the main pipe for creating air bubbles in the water in the main pipe; and also includes a water and air mixer assembly being connected to the main pipe for pressurizing the spongy liquid/gas mixture; and further includes a water and air separator assembly also being connected to the main pipe for separating compressed air from compressed water.