We had Vital Water Company install the Hydrocell Pro for our Home and Pool. Great plumber, great service! We have noticed our water now leaves no water spots on our showers, cars, and windows, and our lawn is greener. This might just be me, but I’ve noticed that I use 1/4 of the shampoo that I used to. I had black mold and was told I could not get rid of it. After installing, no more black mold! We also have properties in Washington, Leavenworth with a well, which we are now setting up, as this product works great with wells. Unreal – this product WORKS.