Hi All, this is my first Winter for owning a pool. I test the basics ever day or every other day so I noticed right away the chlorine demand going down as the days got shorter and water temps decreased and I adjusted accordingly. At water temps at about 65 degrees and the short days (even while sunny) the chlorine demand was very low (about .3 ppm). I lowered the output to 20% and ran the SWCG to 3 hours. I was still running the pump for 10 hours per day (5 hours normal speed/5 hours low...
Colder Weather Chemistry
Colder Weather Chemistry
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