After being tortured finacially by paying $7000.00 to Rainsoft, I was referred to a local water softening company to fix my Rainsoft unit. www.SoutheastWaterSoftening.com
It was there I learned about different grade resins and that a top of the line metered regeneration conditioner sells for far below $2000.00.
They repaired my Rainsoft softener that Rainsoft sold to me. Rainsoft was unable to fix there own softener.
Have a question, then I recommend you call Southeast Water.