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Thread: Drop FC to zero

  1. Back To Top    #1

    Join Date
    May 2009
    Trenton NJ

    Drop FC to zero

    I been trying now for 3 days to drop my FC to zero because I want to do a absorbic acid treatment. I turnded my swg off 3 days ago n let the pump run 24/7.

    I did put a qt of poly-60 in too. My cya is around 60.

    My FC is 6 right now. Dropped only .5 so far. It's been cool in the low 70s-mid 60s
    20,000 gallon viking fiberglass pool w/aqua comfort heat pump, pentair whisperflo pump 1.5hp autopilot dig-220 swg w/RC42 cell (42,000), pg2000 fiber optic lights
    hayward sand filter(medium is echoglass)
    Blue diamond robot cleaner

  2. Back To Top    #2

    Join Date
    Jul 2012
    Dumfries & Galloway, Scotland

    Re: Drop FC to zero

    Is there a question!?

    You can use Sodium Thiosulphate (sometimes called dechlorinator) to remove chlorine, but be careful not to overdose with it or you will need vast amounts of chlorine to counteract it, it's always best to undershoot your target with Thiosulphate first and go down gradually. Usually available at pool stores - that is if your in a rush, or you could just wait for the FC to drop its self.

    Stuart Murray
    Scotland UK

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