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Thread: Light cloudy blue water

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    ksvance's Avatar
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    Light cloudy blue water

    My pool was green two nights ago. Killed the green algae with 60 strength algae. Now my pool is now a light cloudy blue color, any ideas


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    Texas Splash's Avatar
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    Re: Light cloudy blue water

    Hello and welcome to TFP! I suspect you still have algae. If that was an algaecide you used, you only masked the effects and really didn't kill it. You need 3 things to kill algae ... 1) The proper test kit (TF-100 link below); 2) lots of regular bleach; 3) follow the TFP "SLAM" page (link below). Those things together will ensure you eliminate any algae. If you already have a TF-100 or Taylor K-2006C test kit, please post a full set of results and we'll evaluate those numbers for you. Nice to have you with us.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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    Re: Light cloudy blue water

    Will ordered the test kit. Will slam pool tomorrow morning. Adding more bleach to pool. Get my pool numbers and send them your way. Thanks for the help...


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    Re: Light cloudy blue water

    I live in ma, 15 x 24 size overall above ground pool.


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    Re: Light cloudy blue water

    15 x 24 oval above ground. 8496 gallons of water. Location worcester, ma. sand filter, vinyl pool
    Have ordered my test kit should have it by the weekend...


    Check my numbers today
    Pool still cloudy light blue.

    Fc. Ovr. 15.54 ppm
    Tc. ovr. 15.54 ppm
    Cc. 0.ppm
    Ph. 7.8
    Hardness. 31 ppm
    Alkalinity. 105 ppm
    Cyanuric acid. 87 ppm
    Copper. 0.1 ppm
    Iron. 0.1 ppm
    Phosphate. Ovr. 2275 ppb.

    Should I still continue the bleach
    What about my Hardness being to low
    Do i need to lower my phosphate

    Have the pool pump running for the next few days.

    Any ideas


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    Texas Splash's Avatar
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    Re: Light cloudy blue water

    One of the things you'll learn here and from testing your own water is some of those pool store test items won't apply to you. Low CH for example applies for plaster pools, so nothing to worry about there. Phosphates is a way for pool stores to make money with their magic potions (yes, I bought it before TFP too). Right now with cloudy water we're most concerned with CYA and FC, but we cannot trust those pool store results - especially for CYA. It's too critical. So we'll wait until your kit arrives so we advise you properly the first time. For now, until your kit arrives, I would simply add about 1/2 gallon of regular bleach to your water each evening. That's it! Nothing more.

    When your test kit arrives, we'll help you verify CYA first, then adjust if necessary. From there we'll adjust pH and FC to help you perform a TFP "SLAM" (link below). You can read that page and bookmark the other vital links below in my sig. You'll use them often. Once you see how this all works with your test kit, you'll wonder why you never did it before. Have a great day!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Re: Light cloudy blue water

    Will add each night. Continue running the pump 24/7
    A simple question is the water safe to swim in. I know the chlorine is high.


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    Wildcat's Avatar
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    Re: Light cloudy blue water

    Well, not sure how you get 15.54 FC (two decimal points?) Computer test maybe?

    87 CYA (most of us have trouble with testing to within 5 PPM as it is so subjective a test)

    Phosphates do not matter, FC relative to CYA matters to keep algae in check.

    But even if the FC is accurate, based on plugging your numbers into Pool Math your shock level is 34 if your CYA is truly in 87 range.

    I say you will need to wait for your kit to get good numbers. In the meantime, get familiar with Pool Math and read Pool School a couple of times.

    I am sure some more expert than me will chime in, not sure how quickly as it is an holiday! Just didn't want you to feel lonely
    10000 Gal, IG Pebbletec, pop up cleaners,Hayward EcoStar VS, 425 sq ft Hayward Cartridge, waterfall feature

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    Texas Splash's Avatar
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    Re: Light cloudy blue water

    I'll give this back to you and let you decide .. "IF" those pool store results above were indeed correct, then with a CYA of 90, you could actually be in the water if your chlorine level was as high as "35". So yes, you could be in the water. Even if your CYA was only 40 you could still be in the water with an FC up to 16. You'll see where I get that from on the Chlorine/CYA Chart (link below). Enjoy!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Re: Light cloudy blue water

    Just arrived my pool test kit tf-100
    Numbers
    Cyanuric acid 80
    Calcium hardness 90
    Fas/did chore test 14
    Cc 1
    Total alkalinity 150
    PH 7.2
    Tc cannot read over the chart level
    Water is still light blue, 1/2 bleach each night pump running each day for 7 hours

    Location worcester, ma
    1524 oval above ground pool
    8486 gallons of water
    Sand filter....






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    Texas Splash's Avatar
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    Re: Light cloudy blue water

    Very good! So with that cloudy water and elevated CCs you know a SLAM is in order. Your CYA is a bit high for a non-SWG pool, but you can still SLAM, or you can do a partial water exchange to lower CYA. It's up to you. A CYA of 80 requires a SLAM FC of "31". Your pH is perfect, so it would simply be a matter of increasing FC to 31 with regular bleach and maintaining it there until you pass the 3 SLAM criteria. Of course continue to do all the other things listed on the SLAM page (link below). Let us know if you have any questions. Congratulations on the TF-100!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Re: Light cloudy blue water

    How do I slam fc of 31?


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    Re: Light cloudy blue water

    I have read the slam instructions and this one part is unclear, I will do a partial drain and refill, would 1/5 change ok.


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    Texas Splash's Avatar
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    Re: Light cloudy blue water

    If you plan on exchanging some water that is fine. To try and answer your question, please see the "Chlorine/CYA Chart" link below in my sig. You are using the top chart (non-SWG pool). First, find your current CYA, then look to the right and find the corresponding "Shock FC" for that CYA. That's how you know how high to go for the "SLAM".

    Hope that helps.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

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    Re: Light cloudy blue water

    Thanks


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    ksvance's Avatar
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    Re: Light cloudy blue water

    15x24 above oval pool vinyl.
    Location mass
    Cyanuric acid is 90
    Calcium hardness 80
    Fas/dpd 44
    Cc 1
    Total alkalinity ta 140
    PH 7.5
    Tccannot read off the charts.

    Pool is now clear, but noticed some algae on the bottom corner.

    What do I do next.?



  17. Back To Top    #17
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    Re: Light cloudy blue water

    Pool has been running for one week adding 1/2 bleach each night.


  18. Back To Top    #18
    Texas Splash's Avatar
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    Re: Light cloudy blue water

    Keep it steady and consistent. If your CYA is still 90, then your SLAM FC level should be "35". No need to go any higher so you don't waste bleach. Make sure to sweep and brush the pool to keep any last bit of algae broken-up and off the surfaces so the bleach can do its job. Hang in there.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  19. Back To Top    #19
    ksvance's Avatar
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    Re: Light cloudy blue water

    Thanks for your help


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