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Thread: What the heck happened?

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    What the heck happened?

    Following the advice I'd received on here, our pool was looking great. Chemical levels were all in check and the water was a nice clear blue.

    Yesterday evening the water level was a little low so we put the hose in the pool. Unfortunately both my husband and I forgot about it and we ended up adding about 4-5 inches of water to the pool. When we woke up this morning, we found our pool to be a nice, greenish tint and remembered the hose. I figured the chlorine levels must be low so I ran all of the tests to see what I needed to add. My results were:

    TC = 4.5 ppm
    CC = 0.5 ppm
    pH = 7.5
    TA = 170
    CYA = 50
    CH = 470
    Salt = 2640 ppm

    We added two bags of salt to the pool yesterday and I've been adding CYA over the last week or so to bring the levels up to 70-80 ppm. The filter ran the entire time the pool was filing.

    Can anyone enlighten me as to what is going on and how I can fix it? We have guests from TX coming in on Tuesday and we were planning on lots of pool parties this week! Help!
    ~24000 gal, salt water, gunnite, In-ground w/ sand filter
    Pool Installed 2005
    2hp pump replaced 2012

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    duraleigh's Avatar
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    Re: What the heck happened?

    Is your fill water source from a well?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad Bama Rambler's Avatar
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    Re: What the heck happened?

    Is it transparent green? If so it's probably metals.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: What the heck happened?

    Yes, we fill it from a well and we do have hard water.

    Yes, it's a clear greenish color. We took a water sample in to a pool store yesterday (before filling) and they found no metals in the water. I know that pool store test results are notoriously inaccurate, however I don't have any other way to test for metals on my own.
    ~24000 gal, salt water, gunnite, In-ground w/ sand filter
    Pool Installed 2005
    2hp pump replaced 2012

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    Re: What the heck happened?

    You have metals in the water almost positively. You should be able to add a good quality sequestrant to clear the water. Jack's magic is good. Others more familiar will probably list some others.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: What the heck happened?

    Is that the Jack's Pink Stuff? I know I've seen the Magenta stuff around here, but not pink.
    ~24000 gal, salt water, gunnite, In-ground w/ sand filter
    Pool Installed 2005
    2hp pump replaced 2012

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    Richard320's Avatar
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    Re: What the heck happened?

    It's probably iron in the water. Diluted, it will be a pale yellow-orange. And mixed with the blue color you see in a pool, green.
    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: What the heck happened?

    Quote Originally Posted by Richard320
    It's probably iron in the water. Diluted, it will be a pale yellow-orange. And mixed with the blue color you see in a pool, green.
    Ahhhh....that makes sense. I know our well water has a lot of iron in it. I guess I'm off to get the sequestrant. Thanks for your help!
    ~24000 gal, salt water, gunnite, In-ground w/ sand filter
    Pool Installed 2005
    2hp pump replaced 2012

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