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I want to make sure I understand, the CH value is not as important as long as CSI is 0 to 0.6 for a vinyl lined pool. I am asking because my CH has been around 1000, but all other readings look great.

I have scanned through prior threads and could not determine if there was a consensus on the success of CuLator in removing metals. Can anyone provide anything definitive? I have Copper level at 3+. Thanks!

If addressing multiple issues, do you need to follow a certain order to add chemicals? Is 30 minutes between adding different chemicals sufficient? In other words, if pH is low and FC is low, does it matter which to attack first? Thanks

I tried using my TF-100 last night for the first time. I got the following readings: FC - 2.0 CC - 25 TC - 4.5 CH - 1450 (??) TA - 190 CYA -50 I feel the results could be believable, except for CH. It took 58 drops to turn blue. Slowly changed from red to pink to link pink to purple to...