It was the second repair in two years on the same element. The repair man was very knowledgeable, courteous, and explained that a new unit had been designed by Culligan for hard water in my area. He felt the problem was now permanently fixed due to the new type of unit that he inserted. The only complaint would be that my water heater broke a few days before Thanksgiving, and I could not get a repair person until the following Monday. That made me use hard water for about five days.