The Canada Mortgage and Housing Corporation has laid down a pretty detailed description about various water filtration methods as part of their series “About Your House” in order to educate homeowners about regular maintenance issues.
While describing the use of Carbon Activated filters there is a note added that we think you should pay special attention to:
“Note: While some filters contain bacteriostatic materials (which prevent the growth of bacteria), these filters can still eventually start trapping bacteria, allowing it to grow on the filter. For this reason, it is essential to flush the filter daily with cold, treated, potable water to remove any bacterial residue. Remember to follow the manufacturer’s instructions and replace the filter as recommended.”