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Thread: Can't get FCC up

  1. Back To Top    #1

    Can't get FCC up

    I live in Indiana
    16 x 32 ft pool with 10' deep end about 30000 gal

    All readings with a tf-100 test kit received on 7/7/2012

    Pool is now clear

    7/7 readings
    Ph 6.8
    Cc 3
    FC .5
    Ta 140
    Cya 20
    2pucks of chlorine in skimmer

    Based on this and the pool calculated I added 8 gal of 10%liquid chl
    230 oz of borax
    4lbs of cya

    7/8 readings
    Ph 6.8
    Cc 2.0
    FC 1.0
    Ta 200
    Cya 50

    My concern is the ph didn't move and I have struggled with chlorine all summer - what am I doing wrong.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Can't get FCC up

    Welcome to TFP!

    The standard PH test will report any PH below 6.8 as if it was 6.8. Your starting PH may have been much lower than 6.8. Continue adding borax until the PH comes up to at least 7.2. One thing to double check before you go too far is to make sure your PH test is working correctly. Try measuring the PH of your tap water, which is very likely to be above 6.8.

    Your elevated CC level suggests something is going on. [shock:2fcdaw4m]The solution is to continue shocking the pool.[/shock:2fcdaw4m] Just make sure you get the PH in range first.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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