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Thread: fc level

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    bof's Avatar
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    fc level

    Hello boffins

    I am just getting to grips with this site :P and you say that fc should be between 3-7 but my test kit indicates a level of 1-2 can someone explain the difference. I know that each pool has slight differences but how do you work out what these are
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    Re: fc level

    test kit recommendations don't take into account cya levels. they recommend 1-2 ppm fc and then shock weekly. if you maintain fc levels per cya readings then you never have to shock and pool stays sparkling.
    24,000 gallon ig fiberglass pool
    1 hp hayward pump
    hayward sand filter (250 lb)
    madisonville, ky

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    bof's Avatar
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    Re: fc level

    Thank you
    Clarity is everything
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

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    Join Date
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    Howell, NJ
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    977

    Re: fc level

    It's all because the pool industry refuses to acknowledge the relationship between CYA and chlorine. CYA buffers the chlorine. In fact, there is more active chlorine in tap water (unless you have a well) than there is in a pool that is stabilized by the CYA.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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    bof's Avatar
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    Re: fc level

    Dam
    My test kit only measures fc to 5 in a colour scale of 0.5-1-1.5-2-3-5 and the recommended value is 7 ish I will just have to spend some money and get a good test kit luckily I have some friends visiting this month.
    Living in Cyprus
    In ground overflow pool tiled 12m X 4m 19507 Us gals 16243 Imp gals
    1 Kw motor 15 cu m per min Sand filter
    I thought I saw the light at the end of the tunnel but it was just some PERSON with a torch walking toward me.
    I started out in life with nothing and I still have most of it left.

  6. Back To Top    #6
    Mod Squad kimkats's Avatar
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    Tallahassee, FL
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    Re: fc level

    A good test kit will SAVE you money and time in the end. You will LOVE being in control of your pool.
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: fc level

    The test kit matters. You want one with a FAS-DPD chlorine test kit, specifically either the TFTestkits TF-100 or the Taylor K-2006. See the Pool School article Test Kits Compared.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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