Abstract: A device for introducing soap into a high pressure water circuit includes a soap reservoir, a mixing chamber and a pump. A water supply line in fluid communication with a water source and the mixing chamber provides unmixed water to the device. The pump is in fluid communication with the soap reservoir and the mixing chamber and selectively transfers a desired volume of soap from the soap reservoir into the mixing chamber. A mixing valve that is selectively adjustable by a user controls the proportion of the soap and water mixture exiting the device for use. A housing adjustably mounts the device in a shower so that the relative height of the device in a shower may be adjusted. An output supply line in fluid communication with mixing chamber and a nozzle allows a mixture of water and soap to exit the device for use.