Sep 23, 2015 - 07:48 AM
In general if you regernerate the unit properly the resin should last for many years. The regeneration process restores the resin to it's full sofetning power. Since this unit is portable and not setup on a regenertion timer (like a home unit), the resin can become ineffective if imporperly maintained or stored. Also some customers have had to replace or add resin due to it tipping over and loose resin during transit or during regeneration.