Holder for additive to flushing water

In a container for holding an additive which is to be progressively dissolved in flushing water when said container is immersed in a tank in which the flushing water is held, said container having a removable cover defining an outlet orifice therein, a water inlet orifice between said container's top and bottom, means for positioning said container in said tank with said inlet between the maximum and minimum levels of the water in said tank, and a supply of additive in said container beneath said inlet, the improvement which comprises a deflector positioned within said container in alignment with and opposite said inlet, with said deflector's lower edge above the upper surface of said additive, said deflector degining, between it and the wall of said container in which said inlet is formed, a vertical passage extending from a first open end above said inlet to a second open end below said inlet, through which passage water entering through said inlet is deflected by said deflector against said upper surface of said additive, said passage having a cross-sectional dimensions parallel to said wall which is substantially greater than the width of said inlet.