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Thread: Cloudy pool overnight

  1. Back To Top    #1

    Join Date
    Jun 2015
    Location
    Geneva, IL
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    13

    Cloudy pool overnight

    Hi Folks.. So I went from amazing 'where is the water' to solid blue pool overnight and cannot figure out what happen. - Using K2006 btw.

    7/8
    8:00am FC 7.5 CC 0
    11:00pm FC 4.2 CC 0 PH 7.3; added 28 oz 8.25% (all I had on hand) (target 5.2)

    7/9
    9:30am FC 1 CC 0 added 280 oz 8.25% (target 13) - Was a oh my moment when I saw the water and then again when my FC didn't show up.
    10:20am FC 14 CC 0 added 64 oz  (target 18)
    11:20am FC 15.5 CC 0 added 128 oz (target 20)
    1:30pm FC 19 CC 0 no adds. (kids in the pool and didn't want to go over shock level just yet and start a SLAM)
    3:30pm FC 18 CC 0 PH 7.7 (likely not correct due to high FC) TA 180 CH 150 CYA 50 Temp 88 - Filter PSI steady at 21; only up 1 psi since my backwash 3 weeks ago

    Water looks a lot better this afternoon and I can see the main drains now where b4 I could not.

    Full disclosure, I had tossed a 48% HTH hypo puck in the skimmer last night too. (in a skimmer sock)

    Currently I think the plan is to run out for some DE for my sand filter (never used this before), and to keep the FC high until I could start a proper slam tonight.

    As I type this, I know my auto cover box floods from time to time and I wonder if its a swamp and transferring bad-stuff into the pool when we open/close. Guess I need to run out and check that.

    Just so happen I had taken a few pictures on Sunday before this happen.

    Before Pic:<img src="http://www.troublefreepool.com/attachment.php?attachmentid=39606&amp;stc=1" attachmentid="39606" alt="" id="vbattach_39606" class="previewthumb"><img src="http://www.troublefreepool.com/attachment.php?attachmentid=39607&amp;stc=1" attachmentid="39607" alt="" id="vbattach_39607" class="previewthumb">

    Today pic:<img src="http://www.troublefreepool.com/attachment.php?attachmentid=39608&amp;stc=1" attachmentid="39608" alt="" id="vbattach_39608" class="previewthumb"><img src="http://www.troublefreepool.com/attachment.php?attachmentid=39609&amp;stc=1" attachmentid="39609" alt="" id="vbattach_39609" class="previewthumb"><br><br><br>Thanks in advance for any insights. &nbsp;<br><br>
    Attached Images Attached Images
    Best Regards, Tom

    18,000 IG, vinyl, TA-60 Triton II Sand filter w/DE, WFE-4 1 HP Pentair pump, Frog 5430 (off-line) feeder, Frog Mineral & Bac Pac (99% Trichoro-s-Triazinetrione), Frog BAM Algae @ open, gas heater, auto cover, k2006

  2. Back To Top    #2
    Texas Splash's Avatar
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    Jun 2014
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    South-Central Texas, Marion/San Antonio
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    12,967

    Re: Cloudy pool overnight

    Hello Tom. Based on your readings, I suspect that by the time you realized your FC was low, the algae was starting to bloom - hence the cloudiness. That's also probably why it appeared slightly better when you started punching that FC up significantly higher. Certainly, check your auto-fill box and any other areas where water my get stagnant, but I suspect you need to start a SLAM. Your pool is not too bad, so if you keep that FC at SLAM level for your CYA based on the Chlorine/CYA chart, you might pass the 3 SLAM criteria rather quickly. Let us know if you have any other questions.
    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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  3. Back To Top    #3

    Join Date
    Jun 2015
    Location
    Geneva, IL
    Posts
    13

    Re: Cloudy pool overnight

    Thanks for the reply. Some updated numbers.

    7/9
    7:00 Fc 15 CC 0, kids are out of the pool so I started the slam. Added 256 oz (target 24)
    10:00 FC 24.5 cc 0
    11:20pm FC 25 cc 0

    Completed a top to bottom brush out. Water is already looking much much better. Could clearly see the main drains when I checked at 7pm.

    Checked the auto cover box... Not clean, actually has a few plants growing in there. This doesn't surprise me.. not since the last time it flooded from rain and we found a baby snapping turtle in there. Good news is there is no standing water in the box so its not a source of algae in the pool.

    Added 1 cup DE to the sand filter, PSI at 22 now (up one).

    will do an overnight loss test in the AM and post a pic.
    Best Regards, Tom

    18,000 IG, vinyl, TA-60 Triton II Sand filter w/DE, WFE-4 1 HP Pentair pump, Frog 5430 (off-line) feeder, Frog Mineral & Bac Pac (99% Trichoro-s-Triazinetrione), Frog BAM Algae @ open, gas heater, auto cover, k2006

  4. Back To Top    #4

    Join Date
    Jun 2015
    Location
    Geneva, IL
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    13

    Re: Cloudy pool overnight

    Pool looks amazing compared to yesterday morning.

    7/10
    7:10am FC 21 CC 0 - overnight loss of 4ppm, PSI up to 26, water clear. Back washed filter, added 1 cup of DE, replaced 3 inches of water (900 gal), brushed pool, cleaned out baskets. no signs of algae but will keep the slam up until the overnight test passes.

    Anything I'm forgetting?

    Attached Images Attached Images
    Best Regards, Tom

    18,000 IG, vinyl, TA-60 Triton II Sand filter w/DE, WFE-4 1 HP Pentair pump, Frog 5430 (off-line) feeder, Frog Mineral & Bac Pac (99% Trichoro-s-Triazinetrione), Frog BAM Algae @ open, gas heater, auto cover, k2006

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    Mod Squad kimkats's Avatar
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    Jul 2012
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    Tallahassee, FL
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    Re: Cloudy pool overnight

    Good catch!

    I do an OCLT about every other week just because it makes me happy. I feel as if it will show if anything is brewing. I do not have the heavy swimmer load you had but it is used on a regular bases as well as the stuff that blows in from the trees. Better safe than sorry.

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  6. Back To Top    #6

    Join Date
    Jun 2015
    Location
    Geneva, IL
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    13

    Re: Cloudy pool overnight

    I have you say thanks too everyone who provides input, not just on my post here but the deep history on the site. I would have been really lost will out spending several hours reading old posts. This slam is a perfect example of what could have gone from simple to really bad quickly if I have followed the pool guy (gal in this case) advise.

    When I went to buy the DE I had Leslie's test my water... a quick compare to my own K2006 testing and the pool store:

    K2006
    FC 18
    CC 0
    CYA 50
    CH 150
    TA 180
    ph high FC - no test (last know good value 7.3)

    Pool Store
    FC 6
    CC 0
    CYA 95
    CH 180
    TA 110 (bet should flipped the TA & CH when writing them down)
    PH 7.6
    Copper 0
    Iron 0
    TDS 1200
    Phosphates 500

    The fix for my pool was 856 oz of 8.25% bleach - About $20

    Had I not found this site and the followed the pool store:
    15lb of Calcium Hardness - not needed for my pool type
    14 oz Chlorine Neutralizer - What? would have given life to the Algae
    1 qt 6 oz PhosFree - Dead Algae cannot eat

    Thank you TFP for educating me and making a simple problem simple to fix!
    Best Regards, Tom

    18,000 IG, vinyl, TA-60 Triton II Sand filter w/DE, WFE-4 1 HP Pentair pump, Frog 5430 (off-line) feeder, Frog Mineral & Bac Pac (99% Trichoro-s-Triazinetrione), Frog BAM Algae @ open, gas heater, auto cover, k2006

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    Mod Squad kimkats's Avatar
    Join Date
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    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  8. Back To Top    #8

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    Apr 2015
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    Quinlan, tx
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    Re: Cloudy pool overnight

    Excellent!! Empowered pool owners!!


    Lisa P.
    26,000 IG, pebble tec, flagstone, pentair Triton II TR100 sand filter & VS+SVRS 3hp multi-speed pump, Intellichlor IC-40 SWG, Pentair Booster Cleaner, spillover spa, waterfall, Taylor K-2006 testkit
    [It is better to know how to learn, than to know. - Dr. Seuss[/I]

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