Stabilised chlorine granules for use as a disinfectant in your hot tub A disinfectant or sanitiser such as chlorine/bromine is essential to kill bacteria and other potentially harmful organisms Your FCl (Free Chlorine) should be maintained at 3-5mg/l (ppm) To raise the Free Chlorine level, add the chlorine granules as per directions on the label Please Note: In order for the chlorine to be effective a pH level of 7.2 must be maintained ALWAYS add chlorine to water and NOT water to chlorine as this can be very dangerous
