The Drum Bung Mount Acid Spray-All is a drum-mounted, water-driven, medium volume spray applicator for applying highly corrosive chemicals such as those used to remove concrete and for aluminum brightening. This acid-resistant venturi injection system uses standard city water pressure (35 - 125 PSI) to draw and blend a high concentration of acid directly from the drum into the water stream to create a strong solution. The solution is then projected through the discharge hose, wand and fan nozzle as a low pressure, uniform spray.