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Thread: CYA Test

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    StraBary's Avatar
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    CYA Test

    Hi I have a few questions about testing:

    1. How valid is the pinch a penny CYA test?
    2. How often do I need to retest the CYA during the slam process?
    3. Is there a color chart for an OTO test beyond 5ppm?

    Thanks for any help!
    Heather
    18,800 gallons; sand filter; plaster

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    Mod Squad pooldv's Avatar
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    Re: CYA Test

    1. Not
    2. Once 3 or 4 days after you start
    3. Sort of, there is a guess, here is what Richard320 took a swag at here, Extended OTO color comparator?
    Blinding yellow is about 10. School bus yellow is about 12-13. Hunter orange is around 18, up around 25 it starts to look pumpkin orange. I never went any higher than that, but it's been reliably reported that it eventually will turn brown if you get high enough.
    TFP Moderator
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    Mod Squad Jimrahbe's Avatar
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    Re: CYA Test

    Heather,

    We do not believe in having anything tested in a place that is trying to sell you chemicals..

    That is why we recommend you test your own pool water with either the TF100 or Taylor K-206C. These are the two test kits we use ourselves and this gives us the ability to compare apples to apples.

    These kits contain CYA tests and have the ability to test FC up to 50 ppm.

    You cannot slam if you can't test you FC level well above 5 ppm.

    Thanks,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    Mod Squad jblizzle's Avatar
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    Re: CYA Test

    Sounds like you need to invest in one of the FAS-DPD chlorine tests if you are going to have to follow the SLAM process.

    Do not even bother with pool store testing. Will cause you more harm than good.
    Jason, TFP Moderator
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    StraBary's Avatar
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    Re: CYA Test

    Hi Jim,

    Before I spend this much money, I want to make sure this is the right one.

    Thank You, Heather

    Taylor K-2006 Complete Pool Test Kit Fas-dpd : K2006

    - - - Updated - - -

    Thanks, I think I am at hunter orange!
    Heather
    18,800 gallons; sand filter; plaster

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    Mod Squad jblizzle's Avatar
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    Re: CYA Test

    That will work, although you will likely run out of the FAS-DPD and CYA reagents very quickly. This is why I generally recommend the TF-100 from tftestkits.net which is a better deal for what you get.
    Jason, TFP Moderator
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    Re: CYA Test

    No, he said the K-2006C-it has more chemistry that you will need. Look for a test kit comparison on this site.

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    Mod Squad jblizzle's Avatar
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    Re: CYA Test

    Quote Originally Posted by OTPirate View Post
    Look for a test kit comparison on this site.
    There is a link in my signature
    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
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