What is a GAC Filter System?
A GAC filter system is used to remove semi-volatile and volatile organic compounds (SVOCs and VOCs), such as constituents of gasoline, heating oil, and chlorinated solvents, from polluted drinking water. A GAC filter system used in single family homes and small businesses typically consists of two (2) canisters (primary and backup) installed in series, each containing a minimum of one (1) cubic foot of granular activated carbon. A prefilter, flow restrictor, flow meter, and sampling taps are also included with the installation. An iron/manganese removal system may also be installed prior to the carbon canisters if the concentrations of iron or manganese exceed recommended levels. How does a GAC Filter System Work? As polluted water passes through the carbon canisters, the activated carbon removes the SVOCs and VOCs from the water intended for drinking and other domestic uses. Why do GAC Filter Systems Need to be Monitored? The ability of the activated carbon to remove organic compounds
