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Thread: Cloudy Pool underestimated heat!

  1. Back To Top    #1

    Join Date
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    Cloudy Pool underestimated heat!

    Hi All!

    After enjoying a great summer thus far, our pool suddenly went cloudy, and checking the chemistry the mystery was solved!
    The chlorine dropped from a 5.0 to 0 within 2 days. I totaly underestimated the influence of heat on the pool. We had turned up our heater to about 89 because we had friends with babies over and wanted to assure the pool temp was warm for the babies...anyway, that screwed the entire chlorine level and I of course did not pay attention until when I saw the cloudiness.

    Todays Readings:
    Temp: still 88 but heater is off
    FC: .05
    TC: 1
    Blue Kit: CH-1.5isch Ph-7.4
    T/A: 80
    CYA: 100
    Salt 3200

    I've added yesterday about 3 jugs of bleach raised it to about 3, the today low again so I added two more earlier today!
    I need to get Borax to raise PH will do that later on.

    Does anyone have suggestions how I get rid of the cloudiness?
    Thanks!

    Cloudy in NC!
    Cheerio,
    Tanja
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  2. Back To Top    #2

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    Re: Cloudy Pool underestimated heat!

    Am I doing the right thing?
    The pool is beginning to turn green...oh man, algea...nooooooooooo
    Oh well, I better retest and see where the levels are!

    Any suggestions!
    PLease!
    Tanja
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  3. Back To Top    #3

    Re: Cloudy Pool underestimated heat!

    Umm, babies.... might you have had a lot of urea (or worse) introduced to the pool?
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  4. Back To Top    #4

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    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by anonapersona
    Umm, babies.... might you have had a lot of urea (or worse) introduced to the pool?
    I didn't want to go there....oh man....Im not happy at this time but hoping that I can control it asap...
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  5. Back To Top    #5

    Re: Cloudy Pool underestimated heat!

    i dont think high temperature had anything to do with the cloudiness.
    algea i would think.

  6. Back To Top    #6

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    Re: Cloudy Pool underestimated heat!

    Higher water temp means higher chlorine demand - it just gets eaten up a lot faster. In the heat of the summer I have to set my SWG at 55-60%, whereas in fall just before I close even 10% keeps the chlorine level very high. I'm assuming what happened was that the OP didn't readjust the SWG output to account for the higher water temp, which meant the chlorine levels went down and (yes) an algae bloom resulted.
    ____________
    34,000 gallon pool with charcoal Marquis aggregate finish
    Jandy stealth pump, cartridge filter and Aquapure SWG
    Solar heating with Goldline controller
    Polaris 380 Blackmax

  7. Back To Top    #7

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    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by chazas
    Higher water temp means higher chlorine demand - it just gets eaten up a lot faster. In the heat of the summer I have to set my SWG at 55-60%, whereas in fall just before I close even 10% keeps the chlorine level very high. I'm assuming what happened was that the OP didn't readjust the SWG output to account for the higher water temp, which meant the chlorine levels went down and (yes) an algae bloom resulted.
    Yes, the OP did not do her job...darn three days of ignoring the pool is biting me in "the-you-know-what"...

    Thanks guy's!
    Readings now:
    FC 4
    PH 7.4

    Added 96 oz of bleach
    Added 26 oz. of Borax

    Use the pool calculator to figure out what to add and how much!
    Hope this will control the algea bloom.

    Any suggestions are welcome!
    Thanks!
    Tanja
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  8. Back To Top    #8

    Re: Cloudy Pool underestimated heat!

    You said CYA is 100, then you are nowhere near controlling a pool that was starting to turn green.

    http://www.troublefreepool.com/pool-...ya_chart_shock

    Minimum 7 ppm, Target 12 ppm, and Shock at 39 ppm -- per the CYA chart

    You might test CYA again, just to be sure, as it will make a difference in the chlorine you need. If it is really that high you ought to consider draining and refilling to get it to something more like 30-40-50.

    And why is it that high anyhow??
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  9. Back To Top    #9

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    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by anonapersona
    You said CYA is 100, then you are nowhere near controlling a pool that was starting to turn green.

    http://www.troublefreepool.com/pool-...ya_chart_shock

    Minimum 7 ppm, Target 12 ppm, and Shock at 39 ppm -- per the CYA chart

    You might test CYA again, just to be sure, as it will make a difference in the chlorine you need. If it is really that high you ought to consider draining and refilling to get it to something more like 30-40-50.

    And why is it that high anyhow??
    Thank you for the info...I know the CYA is high, drained about 2 feet early in in the season, added fresh water the CYA had dropped to about 80 and I was ok with that but when I tested it today it was back to 100....!

    Should I drain the pool (well part of it) regardless of the algea right now? I already added the bleach so I don't want to waste that either!

    I still have so much to learn, over and over again, , but overall having a pool is awesome , I will not let this issue get me down, it's not like that I can't conquer it anyways...all in due time!

    Thanks for the help
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  10. Back To Top    #10

    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by NCSalt
    Thank you for the info...I know the CYA is high, drained about 2 feet early in in the season, added fresh water the CYA had dropped to about 80 and I was ok with that but when I tested it today it was back to 100....!

    Should I drain the pool (well part of it) regardless of the algea right now? I already added the bleach so I don't want to waste that either!
    If the pool is turning green you will probably see that the FC is gone soon anyhow as it works on the algae. So the prior bleach is gone, but the question is how much more might you need?

    Take a moment to play with the Pool Calculator to see what reducing the CYA will do for the oz of bleach required to get you to Shock Level. Drop the CYA by half and the bleach goes down by half. And remember that you will be adding bleach several times, maybe even many times, not just once. The $ and effort adds up.

    The best advice is to drain and refill, up to maybe half if you can manage it. Or do less but expect do a repeat after testing to see where you are after the first drain and refill.

    I suspect that the rising CYA (assuming you did not use dichlor, trichlor, that is pucks or certain shock products) is just that there was some CYA that had been stuck in the filter or someplace that went back into solution when you lowered the CYA in the pool. It may be a one time thing, or not, I dunno. In any case, no point draining more than you need to, or less either, for that matter.

    But, do retest the CYA before you drain. I am wondering if, since FC may have gotten to zero (.0-anything is suspect IMO) and there may have been ammonia introduced from babies and children (or beer-drinking adults) there might have been a loss of CYA as well. (Let's see if the pros can comment on this, I am beyond my actual knowledge with the idea that 0 FC may lead to dropping CYA values.)
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  11. Back To Top    #11
    JasonLion's Avatar
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    Re: Cloudy Pool underestimated heat!

    There are two possible approaches here. One is to hope that the algae really hasn't gotten going yet and the CYA level isn't too high. In that case raising FC up to around 20 right away might be enough to catch it and keep things from spiraling out of control. This might not work, but it will save you a lot of trouble if it does work.

    The other is to lower the CYA level to around 80 first and then do a full shock treatment, which is sure to work but is much more trouble.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  12. Back To Top    #12

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    Re: Cloudy Pool underestimated heat!

    Hi All!
    I think Jason may have been right, the algea was not in full bloom yet!

    Added lots of bleach, overnight it already changed to a lighter green and the pool is not cloudy anymore. There is visible dead algea floading around, and I backwashed this am.

    Drop Test Chlorine: approx. 24 (added more bleach to reach a shock level of 35)

    Thanks for all the help and re-assurance!
    Tanja in NC
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  13. Back To Top    #13

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    Re: Cloudy Pool underestimated heat!

    one more thing: the only challenge I have now is that I'm leaving town today until Saturday so there be no watching over the pool chemistry until I return. Let's hope I nipped it in the butt enough to sustain until I return!

    Any suggestions?

    Tanja
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  14. Back To Top    #14
    JasonLion's Avatar
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    Re: Cloudy Pool underestimated heat!

    Your CYA level is fairly high, so the FC level should be fairly stable once the algae is all dead. I would raise FC up above shock level before you leave. Given your description of the water looking better today, that should take care of things for a number of days (given your CYA level).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  15. Back To Top    #15

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    Re: Cloudy Pool underestimated heat!

    Thanks Jason for the assurance ...I've added more bleach a few mintues ago and I'm def. above shock level right now ...but as you've said this way I hope it will hold until I return.

    Thanks for the support!
    You guy's are great, this place is my saving grace

    Cheerio,
    Tanja in NC
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  16. Back To Top    #16

    Re: Cloudy Pool underestimated heat!

    Shocking is not a one-time deal. You need to keep your FC at shock levels (or as close as you can) until you lose less than 1ppm FC overnight and you have <0.5ppm CC.

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

  17. Back To Top    #17

    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by anonapersona
    You said CYA is 100, then you are nowhere near controlling a pool that was starting to turn green.

    http://www.troublefreepool.com/pool-...ya_chart_shock

    Minimum 7 ppm, Target 12 ppm, and Shock at 39 ppm -- per the CYA chart

    You might test CYA again, just to be sure, as it will make a difference in the chlorine you need. If it is really that high you ought to consider draining and refilling to get it to something more like 30-40-50.

    And why is it that high anyhow??
    The CYA levels for SWG pools are still 60-80 I think, unless something changed while I wasn't looking.
    Jacuzzi 12x24 Oval AG 48" about 7500G
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    Intex 8110 SWG

  18. Back To Top    #18

    Re: Cloudy Pool underestimated heat!

    Quote Originally Posted by crewchief47

    The CYA levels for SWG pools are still 60-80 I think, unless something changed while I wasn't looking.
    Good catch!

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

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