A method for cleaning a bargun dispenser, the method including providing a cleaning assembly containing a reservoir, a pump and fluid connection tubes; connecting the cleaning assembly to the bargun dispenser by connecting the concentrate inlet line to the reservoir in place of the source of concentrate with one of the fluid connection tubes and connecting the water inlet line to the reservoir in place of the water supply with one of the fluid connection tubes; filling the reservoir with a cleaning solution; activating the pump of the reservoir; and activating the bargun handle buttons for opening the pump outlet lines until the reservoir is empty.