I retested my Ca and at 125 drops I decided that it was time to stop wasting the Ca #3. For grins, I transferred some of the fluid from the test, into one of the small vials and added some more #3 and it turned a nice blue quickly. If I were to make a guess, my pool is floating around the 2000 - 2500ppm Ca level. Don't know if it's important, but I live in Arizona and we're known to have hard water. Thank you in advance for your help!Originally Posted by duraleigh

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