I tinker with everything- have a perfectly good saltwater system that stopped making chlorine- I took the circuit board out and it's totally corroded. I'm looking for an old CS20110 that I can take apart and grab the circuit board, or a place I can buy used circuit boards. I was able to use a CS7110 circuit board to keep mine running the pump but it won't make chlorine and keeps throwing a 92 error about high salt. I've run this other one for years with no problems, so I know how it works, but I just need the circuit board. Any suggestions?