Loading... Please wait...50 pound bucket of unwrapped 3" stabilized chlorine tablets. Delivery only in Eastvale, Norco, and Corona. For use in pools with automatic feeders or a floater. Chlorine is good for regular chlorination to kill germs in pools--but it takes time to work. Therefore, it’s important to make sure chlorine levels are always at the levels recommended by the health department (usually between 1.0 - 3.0 ppm). Also available in liquid. Store in a dry cool area away from sunlight. All sorts of things can reduce chlorine levels in pool water. Some examples are sunlight, dirt, debris, and material from swimmers' bodies. That’s why chlorine levels must be routinely measured.