these characteristics the invention performs the following referring to fig4 the cleaning agent 25 is placed in chamber 22 therefore it is isolated from all mechinisiams in either solid or semi dissolved form the casing 17 is divided into two chambers 22 and 23 by the baffle 14 by setting the baffle 14 into the first set of grooves 13 located at the center of main chamber the volume of discharge is at a minimum when inserting the baffle 14 into the center set of grooves 13 the volume of discharge to chamber 22 is increased by approximately 33 and with the baffle 14 set into the last set of grooves 13 the discharge chamber 22 is increased 66 over the minimum setting by the ability of varying the discharge chamber 39 s 22 volume the amount of solution discharged through aperture 21 is varied it is obvious that more grooves will produce a finer variability as the water level rapidly falls the solution in the upper end of chamber 22 is quickly discharged through aperture 21 and slot 19 with the baffle 14 holding the solution in the holding chamber 23 to a slower discharge rate with this difference in discharge rate of the two chambers a pressure difference will create a solution flow between chambers 23 to 22 through aperture 16 this current 24 is at its strongest when the chambers reach equal volume this current 24 is used to break the surface tension of additive 25 thus to allowing diffusion of the.