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Thread: Tests where Speed Stir not recommended?

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    Join Date
    Apr 2013
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    Tests where Speed Stir not recommended?

    I got my Speed Stir the other day and have been using it for all tests in the TF-100 kit. Are there any tests where the Speed Stir is not recommended to be used? I ask because it seems my FC raised when using the Speed Stir even when I didn't add chlorine which leads me to believe that one of the methods produced inconsistent results.
    ~20,000 gal in-ground plaster pool, 3/4 HP pump, ~3 sqft sand filter (newly replaced May 2013), TF-100 test kit with Speed Stir!

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    duraleigh's Avatar
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    Re: Tests where Speed Stir not recommended?

    I use the speedstir for all the tests. Posts from forum members seem to indicate it is more accurate than doing by hand.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Richard320's Avatar
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    Re: Tests where Speed Stir not recommended?

    I don't use it for the pH or OTO color block tests.

    The stirbar even fits through the mouth of the CYA mixing bottle.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Tests where Speed Stir not recommended?

    Alrighty then, glad I got it since I was measuring FC in the 3-4 range without the Speed Stir and now measuring in the 5.5-7 range without adding bleach.....unless the Trichlor (I know, I'm just going to use up the remaining 3-4 I have left) is increasing it that much.
    ~20,000 gal in-ground plaster pool, 3/4 HP pump, ~3 sqft sand filter (newly replaced May 2013), TF-100 test kit with Speed Stir!

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    Mod Squad jblizzle's Avatar
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    Re: Tests where Speed Stir not recommended?

    It could be the tablets .... depends on how fast they are dissolving.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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