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Thread: Help with Pool in south florida

  1. Back To Top    #1

    Join Date
    May 2012
    Location
    Miami, FL
    Posts
    11

    Help with Pool in south florida

    We recently purchased this house with great pool. I have started taking care of the pool for past month or so. Pool is in good condition. I run the pump and vacuum for about 8 hours a day. Doing all tests on a weekly basis and Chlorine / pH every two days.
    Pool company was maintaining Chlorine level of about 6 ppm. We have had lot of rain and high temperatures (pool water temp. about 95 deg F during daytime).
    I am having problems in increasing chlorine level, which dropped very rapidly over last 3 weeks. Present results are as follows:
    FC 3.5
    CC 0.0
    TC 3.5
    TA 110
    CH 270
    CYA 60
    I have added 4 gal of Clorox bleach and 4 cuts of muriatic acid today.
    Any suggestions / recommendations on pool chemistry in South Florida?

    Thank you
    In ground rectangular Plaster pool.
    Size 40,000 gal.
    Filter SAND Pentair TRITON II
    Pool pump STA-RITE Max E Glas 1.5HP.
    Pool Cleaner Hayward Navigator Pro
    Skimmer Pool Skim
    Pool Heater Pool Fact Industries. Mod. PTST 2 6DE
    Test Kit - TF-100

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    Join Date
    Jul 2009
    Location
    Olney, MD
    Posts
    218

    Re: Help with Pool in south florida

    With a CYA of 60, you should be shooting for a daily FC level between 5 and 9 (according to the poolcalculator). I would take it up to shock level (18) and do the overnight chlorine loss test to see if you have something "growing" and then if necessary keep up the shocking!

    Not sure what your pH was, so can't comment on the need for the acid.
    20k gal, IG Vinyl, IntelliFlo VF Pump, 60 GPM sand filter, Jandy Aquapure Ei 35, 2 skimmers, one main drain, two returns, Dolphin Diagnostic cleaning robot, Taylor K-2006 test kit

  3. Back To Top    #3
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Help with Pool in south florida

    Welcome to tfp, MSI

    J20 gave you good advice, but to start with, I would just target about 10 ppm FC for the Overnight Chlorine Loss Test (OCLT).

    From poolcalculator.com I get 4 gallons and 1 quart of 6% bleach to raise your 40000 gallon pool from 3.5 to 10 ppm FC.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  4. Back To Top    #4

    Join Date
    May 2012
    Location
    Miami, FL
    Posts
    11

    Re: Help with Pool in south florida

    Thank you J20. Sorry missed the pH. It is 7.9

    I am trying to increase FC by adding at least 1 gal of bleach every day for past week or so. Will increase the dosage to shock level as you suggested.

    What would be the normal amount of bleach I should expect to add to maintain the chlorine level in South Florida? In other words what kind of chlorine loss I should expect on a daily or weekly basis?

    Thanks again.
    In ground rectangular Plaster pool.
    Size 40,000 gal.
    Filter SAND Pentair TRITON II
    Pool pump STA-RITE Max E Glas 1.5HP.
    Pool Cleaner Hayward Navigator Pro
    Skimmer Pool Skim
    Pool Heater Pool Fact Industries. Mod. PTST 2 6DE
    Test Kit - TF-100

  5. Back To Top    #5

    In the Industry

    duraleigh's Avatar
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    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: Help with Pool in south florida

    2-4ppm seems to be sort of an "average".....depending on length of direct sun and swimmer load.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  6. Back To Top    #6
    elwood58's Avatar
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    May 2012
    Location
    Sun City West Arizona (2nd Home)
    Posts
    639

    Re: Help with Pool in south florida

    The gallon of bleach you are adding each day is being consumed by the sun. You are going to need to add more than is bing used up each day in order to see an increase in FC.
    19204 Gallon L Shape with a 10X10 2nd Step Baja Ledge. Intellichlor IC-40, IntellipH, Cartridge Filter, Pentair Heater/Chiller (Heat Pump). Tons of Deck with Deck Jets. Construction Complete 6/5/17.

    "If you don't measure it, you can't manage it!"

  7. Back To Top    #7

    Join Date
    May 2012
    Location
    Miami, FL
    Posts
    11

    Re: Help with Pool in south florida

    Thank you all. Everything is under control now. Getting hang of it. Getting a good deal on chlorine from local Pinch a Penny.
    2.5 gal - 10% liquid chlorine for $4.65. Bleach in the area is much more than that.
    In ground rectangular Plaster pool.
    Size 40,000 gal.
    Filter SAND Pentair TRITON II
    Pool pump STA-RITE Max E Glas 1.5HP.
    Pool Cleaner Hayward Navigator Pro
    Skimmer Pool Skim
    Pool Heater Pool Fact Industries. Mod. PTST 2 6DE
    Test Kit - TF-100

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