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About a week ago we opened our pool. At that time the Pentair IC40 SWG was reading 2000 ppm. I added 3-bags of salt and a couple days later it was at 2500. Yesterday I added 3-bags of salt and expected it to be around 3000 ppm today, but instead it is reading 150 ppm. What has happened? Has the...

Hello, I've been a member for several years and have used this forum many times for its excellent advice, but have never posted. This year I am looking for some advice. In March of this year, I noticed a 3" wide band of plaster surface damage, all the way around the pool at the winter water...