A salt-free water softener treats hard water without using salt. And unlike salt based systems which process soft water the traditional way, a salt-free water softener system can treat hard water using a variety of methods. But can we really trust these devices in dealing with our hard water problems? A salt-free water softener makes use of different technologies in treating hard water. Sometimes, these appliances are also referred as ‘conditioners’ and ‘descalers’ because they don’t necessarily remove the calcium and magnesium deposits in water (which are often considered as hard minerals) but they only change the chemical makeup of these substances so they won’t be able to cause scale build up in our bathroom fixtures and kitchen appliances.