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Thread: New to pool scene. Need guidance.

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    New to pool scene. Need guidance.

    Just moved into house with pool. Opened up great and clear now is cloudy and can only see to bottom at about 4 feet.
    Numbers below are from tf100 test kit. Tested twice to make sure I was correct. At least hope I was.

    Total chlorine 2.5
    ph 7.2
    35-40 cya
    2.5 free chlorine
    3.5 combined?


    2nd test cya and ph same as above.
    Fc test took 5 drops to clear then it went back to pink. 12 drops to stay clear.
    Cc test took 10 drops to clear.
    Hardness is super high 600 or so. I vacuumed on waste and filled with new water several inches and
    will check hardness later today.
    Alkalinity was also very high 180-200

    do these seem possible.

    If if so where should I begin.


    Thx in advance.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    Yep, they seem possible. Someone has probably been using cal-hypo to chlorinate or "shock".

    You need to SLAM, so I'm sending you off to Pool School to read up on it. Come back with any questions, we will be here for you!
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    Re: New to pool scene. Need guidance.

    I'll be slamming. Thanks.
    Will update or have ?s soon.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    Beginning of my second slam. I cannot get FC levels above 1ppm. Cc around 2.
    I added about 8 gallons of 8.25 bleach and it barely moved.
    Do I need to drastically increase?
    My cya is around 45-50
    Supposed to be in the 90s and sunny here for the next 10 days at least.
    I have an automatic pool cover. Would it be wise to cover pool during the day while not being used while slamming?

    All the other readings and water clarity is great just trying to stay on top of this.

    Many thanks for the advice so far.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Slamming ???'s

    Beginning of my second slam. I cannot get FC levels above 1ppm. Cc around 2.
    I added about 8 gallons of 8.25 bleach and it barely moved.
    Do I need to drastically increase?
    My cya is around 45-50
    Supposed to be in the 90s and sunny here for the next 10 days at least.
    I have an automatic pool cover. Would it be wise to cover pool during the day while not being used while slamming?

    All the other readings and water clarity is great just trying to stay on top of this.

    Many thanks for the advice so far.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Mr Bruce's Avatar
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    Re: New to pool scene. Need guidance.

    If you have CYA I suspect you don't have ammonia. However, try this.

    Add enough chlorine to get to 10 FC (3 gallons of 8.25%, use pool math if your percentage is different)
    After 10 minutes of circulating, test FC.
    Add enough to get back to 10 FC
    Repeat until you have less than 5ppm loss in FC in 10 minutes.

    Let us know how it goes.
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
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    Mod Squad zea3's Avatar
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    Re: Slamming ???'s

    How long are you waiting to test after adding bleach?
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    Re: New to pool scene. Need guidance.

    Your auto cover should not really be closed when the pool is at slam level. It's just exposing it to higher chemical levels than it needs to be exposed to. You are only losing a few PPM (2-4) to the sunlight. Most of what you are losing is due to algae.

    Filter on 24/7 during the whole SLAM.
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    Re: Slamming ???'s

    Half hour to hour.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    So when I do get to the 10 ppm level would I then increase to required slam numbers?
    Thx.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Mod Squad zea3's Avatar
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    Re: Slamming ???'s

    Try testing 10 minutes after the next bleach addition. Let us know how much bleach you added and what the results are.

    Don't cover the pool during the slam. The pool needs to breath to burn off the CC that accumulates during a slam.
    TFP Moderator
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    Re: New to pool scene. Need guidance.

    Yes, the point of dosing to 10 and seeing if you drop quickly to 0 is so you don't waste bleach by going to 25 (or whatever your SLAM level is) and then having it go to 0 quickly - while determining if ammonia might be a concern. You do not have the symptoms of ammonia so I suspect you will be able to keep some FC after that short 10-20 minute timeframe. Then, yes, you will increase FC to SLAM level and keep it as close to SLAM level at all times during the SLAM.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
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    Re: Slamming ???'s

    Added three bottles of 121 ounce 8.25% after 10 min
    fc was 10. Cc was 2.5

    Just added 1 more jug to hopefully bring it to 18??

    How often should I test. And add??
    Thx.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    I added three 121 ounce bottles of 8.25%. After 10 min This increased me to 10 FC and a 2.5 cc.

    Poured in one more jug and hopefully that will get me close to 18 FC.

    How often would u recommend testing and would you go closer to the 20 fc mark or 16.

    Im right at 45-50 cya.

    Thanks again.
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Mod Squad zea3's Avatar
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    Re: New to pool scene. Need guidance.

    If we call your CYA 50 your slam level is 20. Add enough to reach 20ppm and test in 1 hour, repeat. When you get to the point that the FC only drops 2-3ppm you can wait longer between tests, like 2 hours
    TFP Moderator
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    Re: New to pool scene. Need guidance.

    Ok. Thx.
    Here are the results so far. Waited about 10 min after adding bleach to do each test

    Noon fc 10. Cc 2.5
    added 2 gal. Then at

    1230. Fc 7?? Cc 2.5

    2 more gallons.

    1240 fc 13.5. Cc 2.5

    2 more gallons!!!

    1pm 17.5 fc and cc 2.5

    added 1 more gallon

    At 115pm. Fc level is 15 and cc dropped to 2.

    Dumped 2 more gal. In and headed off for supplies.

    does it sound like I'm on the right path?
    Thoughts on How much bleach I will need??

    Again, thank you all
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    Updated pool numbers. I've used about 20 gallons so far. Is that acceptable. Any suggestions ideas are welcome.
    Should I give a bigger dose before calling it a night around 10 or 11pm.

    Began with 7.0-7.2 ph and cya 45-50.

    Time. Fc. Cc.

    Noon. 10. 2.5

    1230. 7. 2.5

    1240. 13.5. 2.5

    100. 17.5. 2.5

    115. 15. 2

    130. 20. 2

    250. 6.5. 2

    310. 21.5. 2

    410. 13. 1.5

    430 17. 1.5

    515. 19. 1.5-2
    Jmkruse.
    New to pool world. Tf-100 test kit.
    24000 gal. In ground. Built 8 years ago.
    Vinyl liner. Sand filter. Inline chlorination.
    City water. Kansas City Missouri.

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    Re: New to pool scene. Need guidance.

    The number of gallons of bleach used is irrelevant. It will take what it takes. Probably less than 100!
    Keep the FC up to SLAM level as much as possible, that's how to make the quickest progress.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

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