These are the most frequently asked questions about water softeners. It’s very important to know, how can I get better feeling water in my home? Not only is hard water bad for our skin but it’s also bad for your plumbing system. Ever wonder how often you should be filling up your softener? Do you ever wonder what cycle is the better to set your unit to? What happens if you mix two different types of salt? What should I do in case I go on vacation? Is salt the only way to make your water softer? Is softened water really safe to drink? There are a ton of questions to be answered before purchasing a water softener. Do all the research and ask friends and family what they have. Never just buy because your old unit broke and you need a new one NOW. Take time and you’ll be happier at the end of the day.
http://www.lenntech.com/processes/softening/faq/water-softener-faq.htm