Chlorine Tablets are widely used to disinfect water & they kill pathogenic organisms in water. Chlorine can be used to disinfect water for cleaning teeth & for washing fruit & vegetables. When using any water treatment product, the water should be relatively clear. If there is debris or any items in the water, this will reduce the effectiveness of the active ingredients. Particles should be removed by straining the water through a piece of cotton or similar fine weave fabric.