I have a 12500 gallon pool with a Jandy Aquapure 1400. Currently it's set at 100% and I've had it running overnight and all day today. Checked chlorine this morning and it was at 3.2 then checked this afternoon and it was at 3.4. I have 0 phosphates and zero combined chlorine. CYA is at 50. Is it just the heat of the day being in FL that kills chlorine. If I leave my pump running 24/7 and swg 100 shouldn't chlorine keep climbing ? Except for rain diluting water.