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Thread: Salt System Question

  1. Back To Top    #1
    mkmscr's Avatar
    Join Date
    Mar 2013
    CT, USA

    Salt System Question

    If I adjust the output purifier power on my Auto Pilot salt system how long does it take to get an accurate FC reading so I can tell what impact the adjustments had? Assuming I keep the filter pump run time the same I am trying to nail down my FC. This is a new pool filled a few weeks ago. Salt is at 3100 ppm and has been stable but my FC went from 2.5ppm to 10ppm in 3 days. I am assuming 10ppm FC is not safe for swimming. Do I wait it out at this point and hope the sun breaks it down some? It has been raining, cool and cloudy the last few days. Will a few days of hot sun break it down? I adjusted my salt system down by 5% to see if that helps.

    PH 7.8
    FC 10ppm
    TA 120
    CYA 50
    CC .5 maybe a little less
    17x27x37 (24000 gallons) Lagoon Vinyl liner, Hayward Eco VS Pump, Hayward 4350 DE Filter, Auto Pilot SWG, Savi LED Lighting, Maytronics Dolphin M4 Vacuum

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: Salt System Question

    I would turn it down by more like 25%. You can turn it off and half your FC level will be gone with in a few days... 10 is not too high for swimming. Safe to swim up to shock level - refer to the CYA chart.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    Perfectly Clear Pool Service, Find me on Facebook!

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