The 2-Way APV MMFT Concrete Sprayer is a spray applicator for projecting 2 highly corrosive chemicals such as those used to remove concrete and for aluminum brightening. It is intended for use in facilities where plumbed water pressure is available, but unreliable. This acid-resistant system uses an air-operated, double-diaphragm, Flojet pump to draw water from an internal float tank and 2 chemical concentrates from static tanks and blend them to create a wide range of dilution ratios. A uniform spray is then projected through the hose, wand and fan nozzle on to any surface. Alternate between 2 different concentrations or chemicals using ball valves.