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  1. swamprat69

    Quantity of liquid chlorine needed to maintain FC level vs CYA level

    Just drained and refilled pool to lower salt level and TDS from years of liquid chlorine and evaporation with high hardness fill water. Have been bringing chemicals up to correct levels. Currently FC 5.5 (evening), PH 7.8, TA 90, CH 250 and CYA 50. Height of summer here in Las Vegas and I have...
  2. swamprat69

    Trying to understand TFP method and actual FC numbers

    Although I can understand formulas and math easily, thank you for the laymans explanation!:) Only one more question... what triggers the release of HOCL/OCL from the chlorine that is bound up in the CYA and is there a specific balance point/ratio that is maintained?
  3. swamprat69

    Trying to understand TFP method and actual FC numbers

    I understand that listed numbers for minimum FC is actually 7.5% of CYA. At this minimum FC level you must have a certain amount of FC that is not bound up in CYA and available for disinfection. What is the formula for figuring the actual FC level available for disinfection and what are the...
  4. swamprat69

    FC available for sanitation when balancing FC vs CYA

    TYVM for pointing me in the right direction...appreciate it!
  5. swamprat69

    FC available for sanitation when balancing FC vs CYA

    I have read that when balancing FC vs CYA that your FAS-DPD FC reading is not the FC that is actually available for sanitation and that bathers actually see. I assume that this is the reason that SLAM FC is pushed up so high. Is there a formula to figure out the actual FC available for...