Iodine, Chlorine or Chlorine Dioxide
THE GOOD: Disinfectant tablets or drops can be used as a pathogen reduction method against microorganisms.
THE BAD: Contact time, disinfectant concentration, water temperature, water cloudiness, PH, and other factors can impact the effectiveness of chemical disinfectants. The length of time and concentration of disinfectant varies by manufacturer and effectiveness of pathogen reduction depends on the product. These chemicals are either completely ineffective or at best, moderately effective at killing the protozoa Cryptosporidium.