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Thread: Can't clear up the cloudiness

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    Join Date
    Aug 2012
    Location
    Charleston SC
    Posts
    4

    Can't clear up the cloudiness

    We have inground pool that is shaped like a stop sign. It holds 9,000 gallons of water. We have maintained it for 12 years with no problem. This summer about 2 months ago we started with Metal
    stain, when treated with Leslie's pool treatment. It would go away and come back in a day or two.
    Then the pool went cloudy. We were told after checking chemicals that we had a chlorine lock. WE treated with heavy shock (6) lbs super-chlorination and then 3 lbs 24 hours later. never cleared up.
    We drained the pool to about 2 feet and replaced with fresh city water. We had a reading of good
    alkalinity and good ph but no chlorine. We shocked with 1 lb on super chlorine, and started running
    2 tablets in the chlorinator per pool store. Did not look as cloudy. readings were:
    Free Available Chlorine - 4
    Water PH 7.8
    Total Alkalinity 100
    Cyanuric Acid 40
    Calcium Hardness - 90

    Pool store said we needed to bring up Calciul Hardness to 200-400ppm
    told to put 15 pounds of Hardness Plus and in 3 days put another 15 pounds

    Pool Has been running 24 hours a day. The reading above was taken yesterday. As of today our
    pool looks coulder than before! My husband had just changed the return jets up several months
    ago, after reading a post from you, I had him go adjust the jets to the bottom of the pool! We
    do not want to drain the pool again. Any help would be appreciated. (We have to drive a long
    way to even get to the pool store. Thanks

  2. Back To Top    #2

    Re: Can't clear up the cloudiness

    How did you get your test results? Pool stores are incredibly unreliable. If you have been using powdered/puck/solid chlorine you have been adding a lot of CYA so I would expect your CYA to be higher than 40. As you have more CYA you need much higher levels of FC.

    If you are getting algae you will have to shock your pool, the shock process is listed here:

    pool-school/shocking_your_pool

    To shock properly, if your CYA is really 40, then you need to keep a FC level of 16 at all times, until

    1) your water is clear
    2) your CC is less than .5
    3) you lose less than 1ppm FC overnight

    You should only use regular household unscented bleach (like clorox) so that you impact your other chemical levels as little as possible. You will also need a test kit that has a fas-dpd test which lets you measure chlorine levels to 50. The two recommended tests are the TF 100 or the Taylor 2006 test
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

  3. Back To Top    #3

    Join Date
    Aug 2012
    Location
    Charleston SC
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    Re: Can't clear up the cloudiness

    Thanks. We cannot get decent strips from Lowes or Walmart. Have to go back to Leslie's ( only pool store close.) How much Clorex should we use if we are showing no chlorine and we have 9,000 galloons? As of today our test strips are reading no
    chlorine.

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
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    Jun 2009
    Location
    SouthWest Alabama
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    22,337

    Re: Can't clear up the cloudiness

    Don't trust the strips. Get your self a good test kit. At very least get an OTO kit so you'll know if there's any chlorine in there.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  5. Back To Top    #5

    Join Date
    Aug 2012
    Location
    Charleston SC
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    Re: Can't clear up the cloudiness

    I do not have the overnight test kit. We will try to find a pool place open in our
    area tomorrow. Sunday. Right now the chlorine level is no reading on our walmart test strips! Got to get a better test kit. Thank You

  6. Back To Top    #6

    Join Date
    Jun 2012
    Location
    Howell, NJ
    Posts
    977

    Re: Can't clear up the cloudiness

    I don't trust the walmart strips for chlorine at all. I have some of them (from before I found this website, don't judge me). They never show any chlorine. Doesn't matter what the level is: 1, 5, 10, it always says none. They are a few years old, so that may explain this, but I believe they were always like that.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

  7. Back To Top    #7

    Join Date
    Feb 2008
    Location
    Denton, TX
    Posts
    5,061

    Re: Can't clear up the cloudiness

    Once you have a dependable test kit, post the test results here and we will get you going. We need test results for FC, CC, CYA, pH, TA, and CH.

  8. Back To Top    #8

    Re: Can't clear up the cloudiness

    Quote Originally Posted by rhett
    Thanks. We cannot get decent strips from Lowes or Walmart. Have to go back to Leslie's ( only pool store close.) How much Clorex should we use if we are showing no chlorine and we have 9,000 galloons? As of today our test strips are reading no
    chlorine.
    go to the pool calculator.com, enter your pool size. Enter 0 for FC and enter a target chlorine. This will tell you how much chlorine you need to add if you have 0 FC. Also note that mfg just recently switched from 6% bleach to 8.25% pretty much across the board, so make sure you enter the right percent of bleach.
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

  9. Back To Top    #9

    Join Date
    Aug 2012
    Location
    Charleston SC
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    Re: Can't clear up the cloudiness

    Today went to pool store. Got new test strips. Water test as this am:
    FAC-0
    TAC-0
    PH-7.6
    TA-190
    CYA-100
    Calcium Hardness-190

    Chlorinator is off - water looks clearer today. Having people over for a swin. Pool guy
    said to shock it tonight - 5 bags of super cholination. Then wait 24 hours and add 3 bags of shock. He said leave chorinator off! We will see.

  10. Back To Top    #10

    In the Industry

    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Can't clear up the cloudiness

    Your pool is unsanitary if the strips are correct. You need chlorine in the pool.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  11. Back To Top    #11
    Bluegrassman's Avatar
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    Jan 2012
    Location
    West KY
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    Re: Can't clear up the cloudiness

    Personally, I would not swim in that pool. As the other posters already mentioned, do not rely on pool store testing/advice, and do not rely on test strips. You need to purchase a good, reliable test kit as recommended here: Test Kits Compared
    And you need to study up on shocking your pool. It is a process, not a product.
    The Shock Process
    All of this information, and much more can be found in pool school
    Pool School
    18x36 Vinyl IG ~27,000 gal, Intelliflo VF Pump, 300# Sand Filter, Polaris 280 w/Pentair Booster Pump, Pentair EasyTouch w/ IC40 SWCG
    TF100 Test Kit
    SpeedStir

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    ivyleager's Avatar
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    Sep 2007
    Location
    Raleigh-Durham,NC
    Posts
    489

    Re: Can't clear up the cloudiness

    Welcome!!!!

    So far you have ignored all advice. Add only bleach for now, do not use test strips as they are not reliable AT ALL. If you swim in an unsanitary pool (no chlorine!!!!) then you run the risk of giving your guest swimmers ear, bacterial infections, etc.

    Not sure if you have a vinyl pool or not. If vinyl, your calcium hardness if fine...unless you have water heater.

    Just add bleach. Add, repeat as necessary. Nothing else. Run pump 24/7.
    CaryB
    36 x 18 IG vinyl, 25K, 1 HP pump, sand filter
    1 skimmer, 2 returns, no main drain
    Old school: PoolSolutions test kit

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