I've buffed the inside of the valve with a Dremel and upon closer inspection noticed that the walls are pitted. Buildup could have been occurring over and because of the pitting. Anything I can do to keep/get this smooth?
The other thing is that the Cam is worn in a spot probably from the piston getting stuck during regen. I'm getting an answer from the local Central Florida dealer that the Cam is obsolete. They of course want me to buy a new model. Will I have to get this part, if available, from Rainsoft direct?
I guess the last question for salvaging the unit is whether anyone sells discarded units for parts? Do you happen to know?