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Thread: high CYA?

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    awarsoca's Avatar
    Join Date
    May 2009
    Location
    Columbia, SC
    Posts
    64

    high CYA?

    Last night's numbers (Saturday was about the same)

    PH 7.8
    FC 3.0
    CC 0.5
    TC 3.5
    TA 80
    CYA 200 <--- ?!?!

    I almost overflowed the CYA tube. I was worried I had messed up the test last Saturday when I saw CYA at over 200 (past the line) but it came out the same yesterday. I am pretty sure this should be lower with the amount of rain water i have drained off since i added CYA last summer.

    We've had a lot of rain so I am having to drain off some of the water and add 6% bleach (added 183oz jug on Tuesday evening because I was less than 1 )c: )
    Clint
    Pics of the build process
    34x16x25 Lagoon IG Vinyl 14,800gal (Oxford Tile/Glimmerglass 20mil)
    Pentair: Intelliflo VS3050 pump, Intellichlor IC40 SWG, Clean and Clear 320 cartridge filter, LA01N 3/4hp booster pump and Polaris 280 cleaner

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    Join Date
    Apr 2009
    Location
    Northeast Ohio
    Posts
    221

    Re: high CYA?

    When you say you almost overflowed the tube, it makes me think you are having some trouble with the test. First, the test cannot accurately measure over 100 ppm. And with 100 ppm, the black dot would disappear with very little solution in the tube. Basically, the more water you have to put in the tube to may the black dot disappear, the LOWER your CYA is. From what you write, I'm thinking your CYA is actually 0 or very close to it.

    See this link for more information.

    After you read that, try the CYA test again and report back.
    32x16 ft Grecian rectangular vinyl pool 8ft on deep end - 19000 gal. 18" Hayward S-240 sand filter. 250K BTU Pentair MasterTemp heater. Hayward 3/4 HP Super Pump.

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    awarsoca's Avatar
    Join Date
    May 2009
    Location
    Columbia, SC
    Posts
    64

    Re: high CYA?

    hahaha I can't read the tube. you are correct, it is more like 0 as the top of the tube says 20 not 200
    Thanks.
    Off to the store )c:
    Clint
    Pics of the build process
    34x16x25 Lagoon IG Vinyl 14,800gal (Oxford Tile/Glimmerglass 20mil)
    Pentair: Intelliflo VS3050 pump, Intellichlor IC40 SWG, Clean and Clear 320 cartridge filter, LA01N 3/4hp booster pump and Polaris 280 cleaner

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