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Thread: Another way to test chlorine?

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    Another way to test chlorine?

    What's another recommended method of testing chlorine levels? My kit is down to about 1-2 more uses R-0870 and I'm in the process of shocking. Is there anything worth buying at an LPS or WalMart or anything?
    Dumb question I'm sure, but this is only my second season and I've only ever used the TF100 test kit.
    15k gallon IG kidney pool with attached spa
    plaster
    sand filter

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    Butterfly's Avatar
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    Re: Another way to test chlorine?

    If the shock level isn't too high, you might try using the dilution method for the OTO test to get by for a couple days.

    Have you placed your order for the FAS/DPD test kit? I think if you place the order before 2PM, it goes out [s:3ofebysz]today[/s:3ofebysz] same day if Monday thru Friday
    http://tftestkits.net/cart.html?m=splash
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    BoDarville's Avatar
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    Re: Another way to test chlorine?

    When going through the Shock Process, you really need the FAS-DPD test which uses that powder. The FAS-DPD test is the only commonly available chlorine test that can measure FC levels above 10 reliably. You can check local pool stores and see if they have it. Otherwise, you can order refills here: TFTestkits Refills

    If you cannot get that powder locally today, you can use the dilution method for the OTO test as Butterfly suggested to tide you over while you wait for your refill to arrive (which is usually pretty quick) . The OTO dilution method is explained more fully here: Extended Test Kit Directions. Scroll down to OTO Chlorine Test section.
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    duraleigh's Avatar
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    Re: Another way to test chlorine?

    It seems like there are a few places around that stock the R-0870. It is certainly worth a couple of phone calls.

    Same thing as a toothache, this only happens on a weekend.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Another way to test chlorine?

    Same thing as a toothache, this only happens on a weekend.
    Yup
    Tanks for the info!
    15k gallon IG kidney pool with attached spa
    plaster
    sand filter

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    Richard320's Avatar
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    Re: Another way to test chlorine?

    It's not terribly accurate, but while you have some powder, get a reading and then take another using the OTO (yellow color) drops and see what it looks like.When it stops looking canary yellow and starts to look like school bus (or Caterpillar equipment) yellow, it should be around 12, and then starts to get into various shades of orange.

    It's something, anyway.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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