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Thread: wacky chem readings crystal clear pool (EDIT _ BAD TEST KIT)

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    wacky chem readings crystal clear pool (EDIT _ BAD TEST KIT)

    EDIT: Its confirmed my test kit was contaminated either by heat/cold or just plain old age. In any case Im leaving the original thread unedited to illustrate how important keeping test kits current, perhaps even fresh kit every year. The values for pH CYA and FC tests were inaccurate, all due to bad test kit. I learned my lesson as i was adding ridiculous amounts of clorox because i thought my cya was high when it wasnt. I clearly have micro-orgs that need SLAM'ed but now that i have the fresh test kit ill be able to complete the SLAM. thanks everyone



    So i opened my pool, a wee cloudy and walls were a bit slimy (winter cover blew off for a few days in march)

    shocked with what bleach i had on hand and tested the water.

    CYA was 100 and im baffled as to how that got in there. i did use some dichlor shock in the closing last fall.
    TA was 160 so i lowered pH to about 7.0 and started with muratic acid. aerating with the return for pH... that is still in progress
    The pool is using up a gallon a day of 8.25% sams club clorox and every morning my fc is 0. I know its supposed to be much higher based on my cya but for now im kind of in a holding pattern til the refills for my kit arrive. CC has been 0.
    CH is kind of low, 150.

    I havnt attempted a slam because im short on some test supplies, maybe theyll arrive today idk but for now, does is seem
    accurate that i do indeed have some organics that are eating up the fc ?

    Also do test supplies go bad? with all the odd readings im getting i wonder if temperature or age takes a toll on the tft100 kit. thanks all
    27' above ground
    voyager cartridge
    2.25 hp hayward pump 2 speed

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    Isaac-1's Avatar
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    Re: wacky chem readings crystal clear pool

    Yes testing supplies go bad, they should be stored in a cool dry place, avoid excess heat and avoid freezing, even then the shelf life on some of them is only about 2 years
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
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    Butterfly's Avatar
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    Re: wacky chem readings crystal clear pool

    Did you test the CYA with the dilution method?

    Directions: See post #8 http://www.troublefreepool.com/threa...Kit-Directions
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Re: wacky chem readings crystal clear pool

    Im not sure what the dilution method is a variation on the instructions from the tft kit. but yes i fill the bottle to mark, then fill with r013 and fill the tube til the black dot is gone. However I am suspect at the age of the testing reagents. THey were bought new in may of 2012 which is at the end of their shelf life. New reagents scheduled to arrive today. Heck I may have no problems at all
    27' above ground
    voyager cartridge
    2.25 hp hayward pump 2 speed

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    Butterfly's Avatar
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    Re: wacky chem readings crystal clear pool

    The link above has instructions to the dilution test. Post # 8, item # 9
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: wacky chem readings crystal clear pool

    thanks butterfly I thought thats what you were referring to. Ill do that this afternoon when get known good cya reagent.
    27' above ground
    voyager cartridge
    2.25 hp hayward pump 2 speed

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