We have a 3 year old salt pool. The Aqua Logic control panel reads that the salt level is 4100, the pool store says it is at 2900. The real probelm is we keep getting a "high salt/amps" error and it stops producing chlorine. Which the chlorine reading is fine. We had our salt cell tested and it is still good. Do I trust the pool store or the reading from my control panel? FYI - we had already emptied some water and added more which brought the salt level down from the 4700 original reading. Advice?