Abstract: Means are provided to condition the water in a toilet bowl in the form of a receptacle suspended in the overflow pipe below the discharging end of the auxiliary water pipe which extends from the float operated water inlet valve. The receptacle contains a conditioning chemical and captures only a portion of the water discharged from the auxiliary pipe, the rest being passed down around the receptacle. The captured water is placed in contact with the chemical to form a solution which is trickled out of the receptacle and down through the overflow pipe into the toilet bowl, thereby to condition the water standing in the bowl.