Enviro Water Products drew attention to a new system that filters and softens water for an entire home without using salt. The system uses carbon water filters and a salt-free water softener to protect against contaminants, sediment, and scale build-up. The salt-free solution reduces maintenance — you don’t have to haul salt bags every month. And it can save several thousand gallons of water a year over a salt system that produces brine waste-water, often difficult for utilities to process.

Fine Home Building, http://www.finehomebuilding.com/2015/11/25/hunt-for-green-products-turns-up-treasures