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Thread: Testing Father's Water

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    james63038's Avatar
    Join Date
    May 2014
    Location
    St. Louis, MO
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    35

    Testing Father's Water

    My parents have a pool and I asked them to bring a water sample when they came down (2 hours away) for the weekend. The water sample was over 24 hours old so that may make the testing obsolete.

    18 x 36 concrete pool painted with chlorinated rubber with fiberglass sides. DE filter (40ish years old). Maple trees surround the pool along with various trees around the subdivision. Using chlorinator with tri-chlor tabs to chlorinate and at times bags of shock.

    That being said, here are his results:

    FC: 2
    CC: .5
    TC: 2.5
    CH: 125
    TA: 110
    PH: WITHIN RANGE
    CYA: 80-100 (we both did the test and came up with separate results)

    He is saying that if he doesn't keep his chlorine up, he starts to notice algae starting to grow. He then brushes it in order to remove the algae and bumps up his chlorine levels. Once the levels are higher, the algae doesn't appear. Due to the Maple trees surrounding the pool and constantly dropping in the skimmer, does the residue affect the water quality necessitating an aggressive algae regiment in order to counteract.

    He's currently adding PhosFree Plus to counteract the organic material in the pool. This added once a week.

    Let me know your thoughts and also keep in mind that the sample was tested over 24 hours with the TFP100.
    My Build 20x40 Freeform Shotcrete (33k gal) pool. 3.6-8.6, Blue Granite Pebble Sheen, Tennessee Flagstone Coping, Sta-Rite System 3 Modular Media Cartridge Filter, Intelliflo 4x160 x SVRS, Rainbow Automatic Chlorinator, 1 LED light, Tanning Shelf, 15.6 Slide with 3 different height jumping rocks, Sta-Rite 333k btu propane heater, kool deck, TF100, Dolphin Oasis Z5

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Testing Father's Water

    With his CYA at 80-100, he needs to keep his FC at 6-10 ppm. never dropping below 6 ppm.

    Far better would be to drain about 50% of your pool water and add fresh fill that contains no CYA. That would bring his new CYA test to 40-50 and his chlorine can then drop to around 4-6 ppm.

    He is doing nothing with phosfree except sending money to the Pool Store.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    james63038's Avatar
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    May 2014
    Location
    St. Louis, MO
    Posts
    35

    Re: Testing Father's Water

    Anything with the Maple tree's causing any problems?


    My Build 20x40 Freeform Shotcrete (33k gal) pool. 3.6-8.6, Blue Granite Pebble Sheen, Tennessee Flagstone Coping, Sta-Rite System 3 Modular Media Cartridge Filter, Intelliflo 4x160 x SVRS, Rainbow Automatic Chlorinator, 1 LED light, Tanning Shelf, 15.6 Slide with 3 different height jumping rocks, Sta-Rite 333k btu propane heater, kool deck, TF100, Dolphin Oasis Z5

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