Dollar values are provided as a rough guide to compare costs of different systems. Know the quantity of AC in the filter. This determines the amount and rate of pollutant removal. Use prefilters to add life to AC filters. Replace prefilters and AC filters regularly.
Retailers can help in the analysis.
Results from NSF tests provide good measures of the effectiveness of devices designed to treat water for both esthetic and health reasons. WQA offers voluntary validation program to its members. Validation is less stringent than certification. Summary Home water treatment using AC is one option often used by people with a drinking water quality problem. AC is considered the best home method for treating certain organic compounds.