Showerhead controller assembly

A controller assembly (100) that is attachable by suitable means to a shower wall (107) for controlling flow of solute and water to an attached showerhead (126), the controller assembly comprising:

• an inlet (104) configured to attach to a water supply pipe (106), an outlet (108) configured to attach to the showerhead (126), a reservoir (110) attached by threaded surfaces (128) to the controller assembly wherein solute (105) in the reservoir mixes with water (103) pressing through the controller assembly forming a mixture (105) during operation of the controller assembly to which the reservoir is affixed, a manually rotatable adjustment disk (116) having an axial means (120) disposed within a hole (130) of a first mounting bracket (114-1), through another hole (132) at the center of the adjustment disk, (116) and continuing through yet another hole (134) of a second mounting bracket (14-2), whereby the axial means (120) pivotably holds both mounting brackets and the adjustment disk in line, with the adjustment disk (116) being able to be turned manually in a clockwise or counterclockwise motion perpendicular to the water supply pipe (104) and outlet pipe (108), the adjustment disk being sandwiched between the two integral mounting brackets, has a plurality of integral bypass apertures, that are selectively positionable relative to the inlet and outlet, to do any one of the following, when being turned by hand, direct said water (103) from the inlet (104) into the reservoir to the outlet (108) and to the showerhead (126), direct water to flow directly from the inlet (104) to the outlet (108) and not into the reservoir, and block the water from flowing from the inlet to the reservoir and to the outlet, the adjustment disk, when rotated manually, will also selectively decrease or increase the flow of the water or water-solute mixture (105) to finely control flows.