I have had an AquaCal AutoPilot Chlorinator for 3 years. I have always had near perfect water and watch the chemistry very closely. Until recently I have never had to use muratic acid on the chlorinator cell due to the fact that there was no calcium build-up. Recently, I received a warning that the cell needed maintenance and discovered heavy scaling. I cleaned the cell and was back up, but within a few days the calcium was back. My chemistry is still good but the Total Dissolved Solids are at 5,000. Salt level is very high but is recommended by Aquacal as not to stress the cell so much.
Do I need to drain the pool, or replace the cell?