The Aquabion water softener system is based on a proven patented technology, with an international track record of successful installations in a wide range of domestic and industrial situations. The system uses zinc sacrificial anodes that release zinc ions which react with calcium to form aragonite. Thus preventing limescale buildup and forming a thin protective layer. There is no other product on the market which can use this technology and there have been many independent tests which confirm that Aquabion is safe and highly effective.
Water treated by the Aquabion water filter is perfectly drinkable and still includes all the essential minerals that occur naturally.
Scientific answer:
The Aquabion has a highly pure, zinc sacrificial anode. This combined with Turbulence bodies creates currents leading to a self-cleaning effect of the anode.
The Zinc ions (-) dissolves and reacts with the Calcium bicarbonate ions (+), forming Aragonite.
Aragonite is wanted because it is an non-adhering lime.
So we have changed a soluble rock into an insoluble rock.