John Miles is a Certified Water Specialist™, certified by the Water Quality Association. John has over 30 years in the water treatment industry, which entails installation, service, and repair of all brands of water softeners! Water softeners are not a "one-size-fits-all" solution. When John comes into your home, he tests the water and sizes the water softener based on the number of people in the home and hardness of the water. John will guarantee that your water softener is appropriately sized for maximum efficiency. To extend the life of your softener, Iowa H2O uses a superior resin made to hold up in heavily chlorinated water.