We knew our water was not good, but we had no idea how bad it really was until Kim showed us. Within two days of installation the "crust" from our hard water around the sink and faucet in the kitchen was nearly gone as was the buildup in my washer and dishwasher. Our 18 month old has eczema, no flare ups since installation and a noticable difference in how soft our skin feels now. No more "muddy" coffee. It tastes better and stays hotter longer.