Thanks for the info. I figured the pool volume using Michael's bleach calc. It is a 24' round by 52" deep. I am going to drain and refill starting tonight. I am using my city water to fill the pool. I made the assumption that my fill water was 0 salt. You what happens when you assume... I do not have a salt test kit, but I think that there may be some salt in my fill water. My control unit only goes down to 2600 ppm or so.
Harold
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