I am looking for a reference to someone in Houston that services softener systems. The company that installed it, came out and looked at the system and just wanted to completely replace the valve for $800 rather than trying to repair it. The valve seems to be working, but the brine tank is full up to the float limit and does not go down after a regen. I pulled the injector and checked to see if it or the screen was clogged, but they were clear (more than the installer company's service man did). I also made sure the drain line was clear (it was).