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Thread: Trying to use the pool calculator with a Biogard 1200v test

  1. Back To Top    #1

    Join Date
    Jul 2012
    Location
    Southern Wisconsin
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    6

    Trying to use the pool calculator with a Biogard 1200v test

    So we were given a test kit to use up, missing a couple things, and of course things are worded differently. We've always struggled with the Alkalinity, but according to this kit, it is so high I cannot find the end. Here's what I can get from it.

    Kit reads at 0.5 residual chlorine and under, ph of 7.5-7.6, and the alkalinity is 200 + (stopped at 20 drops)
    Last test strip we had did Acid, and that was in the normal range, but that was according to a test strip.

    Doesn't look like I can use the Pool Calculator because of the FC test.

    Bought 3 gallons of 12.5% chlorine from the pool store, didn't seem too bad for high % stuff at 4.20/gal, and our 2 closest walmarts suck and don't have anything.

    Sand filter is on the way, water is a little on the cloudy side, so hopefully this will help clear things up.

    The pool store just keeps throwing low and slo at us, but we don't seem to be able to bring the alkalinity down????
    AGP 8600 Gal Intex Ultra Frame 18x52
    Hayward S180T Sand Filter

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: Trying to use the pool calculator with a Biogard 1200v t

    Use muriatic acid. It is significantly less expensive.

    Do you know your other levels (for example CYA & CH)?
    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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    Jul 2012
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    Southern Wisconsin
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    Re: Trying to use the pool calculator with a Biogard 1200v t

    I don't have CH, but the CYA according to the test strip comes in at 30-50 ppm.
    AGP 8600 Gal Intex Ultra Frame 18x52
    Hayward S180T Sand Filter

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
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    Silver Spring, MD
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    Re: Trying to use the pool calculator with a Biogard 1200v t

    You shouldn't let FC get that low if you can help it. With CYA around 30 to 50 it shouldn't be difficult to maintain a reasonable FC level (unless you have algae).
    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

  5. Back To Top    #5

    Join Date
    Jul 2012
    Location
    Southern Wisconsin
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    6

    Re: Trying to use the pool calculator with a Biogard 1200v t

    Algae hasn't been an issue yet, pool is out in the open, full sun morning till night, so the chlorine disappears in an instant. I have been stuck with tabs, which we hit pretty heavy for a while. I think that's what helped bring my acid up finally if I'm reading everything on here correctly.

    Gonna pick up some Muriatic acid from Menards tomorrow, $5/ gallon, beats the **** out of the lo and slo.

    I'll give a good dose of chlorine tonight seeing how we have 100 degree weather tomorrow again. Been a crazy summer for Wisconsin.
    AGP 8600 Gal Intex Ultra Frame 18x52
    Hayward S180T Sand Filter

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