If you want the minerals removed, you may want to consider an iRO reverse-osmosis system. The iRO is our Premium Brand Reverse Osmosis Water Filter System. Made in the USA and like our filter system above, it is NSF certified.
To maintain the highest quality water your bottleless water cooler can provide, your filter should be replaced every 6-8 months or 1200 gallons, whichever comes first.