Coliform bacteria include E-coli, Salmonella, Legionella, Cholera, and Salmonella Typhi (typhoid). If coliform bacteria are present in drinking water, this may be an indication that possibly pathogenic organisms are present. These bacteria live in soil or vegetation and in the gastrointestinal tract of animals. The majority of coliform bacteria are harmless but if E-coli is found it is likely that the water supply has been contaminated. Contamination sources include human or animal waste.
Chlorine is added to the water supply in the filtering process by the water companies to kill these bacteria and viruses. If pipes become contaminated or the water is not adequately chlorinated there is a chance that coliform bacteria may be present. Because of their size bacteria are removed by the ceramic outer shell of the UltraCarb and Super Sterasyl filters.
For your benefit we've selected our most popular water filters for removing bacteria below: