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  1. Elemental21

    Yet another CSI question for vinyl pool with a heater and SWG

    I know this has been asked in the past but recently I've been in discussions with 2 pool techs that swear up and down that a significantly negative CSI (LSI is what they use) is aggressive to "pool lights, heater, pump". I know the general view of TFP is that negative CSI isn't an issue for...
  2. Elemental21

    Curious about Taylor's documentation for max FC ppm for FAS-DPD test

    I haven't seen this discussed in the forums and was talking with someone on Reddit about this. Why does Taylor seem to be saying that 20ppm is the max you can test with their FAS-DPD tests here: https://www.taylortechnologies.com/en/Image/GetDocument/607 But then here on the Potential...
  3. Elemental21

    Testing confusion TF-100 vs pool stores

    I've had my in-ground 21,000 gallon pool for a year, but just this season started following the TFP method. I have a SWG and have had trouble keeping the FC levels up. That's hopefully going to get resolved by the pool manufacturer, but he wanted me to get a store test to verify there weren't...