Ultimate Guide to Whole-House Water Filtration & Softening Systems

## Understanding Water Contaminants & Hardness Water hardness measured in Grains Per Gallon (GPG) causes mineral scale buildup inside water heaters, boilers, and fixtures. Municipal chloramines degrade rubber plumbing seals over time. ## Multi-Stage Whole House Systems 1. **Ion-Exchange Water Softeners:** Replaces hard calcium and magnesium ions with sodium or potassium ions using high-capacity resin beds. 2. **Catalytic Carbon Whole-House Filters:** Removes chlorine, chloramines, VOCs, pesticides, and unpleasant tastes and odors. 3. **Point-of-Use Reverse Osmosis (RO):** Uses semi-permeable membranes to remove up to 99% of dissolved solids, lead, PFAS, and heavy metals at the kitchen drinking faucet.