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Thread: First pool math app casualty?

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    n240sxguy's Avatar
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    First pool math app casualty?

    Now you guys have gone and done it! You should be ashamed for making me want to test all my levels just so I can put numbers in a cool new app. I finally did my first full battery of tests for the season yesterday. When I went to do the CH test, which I hadn't done since early last year, the little blue bottle was stopped up. I squeezed the bottle and the dropper part blew off! I lost most of the liquid in there, but I still have enough to make it through the season since I don't test it that often. I am curious about something though. My CH came back at a whopping 75. Does a seriously negative csi number really not matter in a vinyl pool? I'm at -1.43.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    duraleigh's Avatar
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    Re: First pool math app casualty?

    CSI is an over used calculation for TFP members and is an indicator for the formation of calcium scale.....nothing more.

    Vinyl pools are VERY hard to form scale anyway so, unless the CH is wildly excessive, it is not an issue.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    n240sxguy's Avatar
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    Re: First pool math app casualty?

    OK. I knew that, I just need to hear it again every so often I guess. I see the -.6 to .6 recommendation and freak out when it gets that far negative. My CH was about 125 last year. As I have to refill this summer it will come back up some.
    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Administrator Leebo's Avatar
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    Re: First pool math app casualty?

    Go on into your settings and turn off CSI for a vinyl pool. No need to worry about it so ya may as well hide it! One less stress. Our CH runs far lower at around 50 and have never had any issue. It's only when a users CH level gets sky high that scaling becomes an issue. Too low damage to plaster becomes an issue however that's not a worry in your pool.

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    n240sxguy's Avatar
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    Re: First pool math app casualty?

    Quote Originally Posted by Leebo View Post
    Go on into your settings and turn off CSI for a vinyl pool. No need to worry about it so ya may as well hide it! One less stress. Our CH runs far lower at around 50 and have never had any issue. It's only when a users CH level gets sky high that scaling becomes an issue. Too low damage to plaster becomes an issue however that's not a worry in your pool.
    Good idea


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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