[RKDinOKC]

It backwashes after every 800 gallons and uses salt to help clean the filter when it backwashes.
It actually has two so while one is cleaning it uses the other.

Was told I need to update my softener system, but they want more than I paid for it new.
Originally got the system for my brother with MS. Before the softener the water would make him lose mobility while taking a shower, think it was the clorine. He had gotten a softener on his house in Atlanta. He didn't need on on our house just 6 miles away, guess the water is from a different source here.