A Guide to Drinking Water Treatment Technologies for Household Use Introduction This document is designed as a guide for household water treatment, not a recommendation. Before installing a household water treatment system, contact your local health department�s environmental health group for consultation. Filtration Filtration is a physical process that occurs http://andrebknqs.ivasdesign.com/14787545/a-useful-breakdown-of-handy-water-filtration-systems-secrets