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Thread: "Abbreviated" calcium hardness test ration help please

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    Join Date
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    "Abbreviated" calcium hardness test ration help please

    Is this the right amount chems/proceedure to use for the CH test with the TF-100 test kit?

    fill cylinder to 10ml mark with pool water
    add 10 drops R-0010
    add 3 drops R-0011L
    add R-0012 1 drop at a time until color changes to blue, multiply x10 for CH

    thanks, Brian

    title should'a been ratio, not ration(but I guess it does help ration the chems)
    15,000 ig plaster (kidney shape approx 30'x16'), Hayward 1.5hp "Max-flo" pump, Hayward DE filter(48 sq. ft effective filtration area, 96gpm, 6lbs DE), TF-100 Santa Barbara, CA

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    Mod Squad jblizzle's Avatar
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    Re: "Abbreviated" calcium hardness test ration help please

    If you use 10ml, then you multiply by 25ppm
    Jason, TFP Moderator
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    Richard320's Avatar
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    Re: "Abbreviated" calcium hardness test ration help please

    Quote Originally Posted by calstar View Post
    Is this the right amount chems/proceedure to use for the CH test with the TF-100 test kit?

    fill cylinder to 10ml mark with pool water
    add 10 drops R-0010
    add 3 drops R-0011L
    add R-0012 1 drop at a time until color changes to blue, multiply x10 for CH

    thanks, Brian

    title should'a been ratio, not ration(but I guess it does help ration the chems)
    Like Jason said, multiply drops by 25. I find it easier to read with 5 drops of R-0011. And blue means sky blue, not lavendar. If you don't have a speedstir, expect it to take close to 10 minutes if you have real hard water. You need to mix it well, really really well. When I switched to using the speedstor, my CH readings dropped by about 200. Same water.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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