One other thing that I might mention -------------- when I first put up my pool years ago, I couldn't believe how fast the chlorine would disappear. i found that if I added some in the morning, it was gone by afternoon. So, in addition to the good advice Janet gave you, i would suggest that for a week or so until you get some stabilizer to register, you'll probably find that you need to add bleach at least a couple of times a day. After there is some stabilizer buildup, then you'll be able to test and dose in the evenings only.

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