Abstract: Salt and potassium compound may be reacted in a swimming pool or other body of water to be sanitized and/or cell plates may be utilized. NaCl may also be added to the mix to produce a shock formulation. The swimming pool or other water may already contain salt brine with sufficient concentration of salt. The delivery method of KHSO5 may include broadcasting, dispensing, or other means. In fresh water pools the salt may also be added for this purpose, such as within a canister or other vessel, wherein a local reaction products of the cell plate and/or potassium compound may be dispensed to create a desired chlorine level in the water for sanitizing. For sanitizing with metal ions, the potassium compound and salt and/or cell plates may be utilized to create a reaction with elemental transitional metals and/or alloys thereof.