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Thread: New swg ppol owner, pool cloudy blueish

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    New swg ppol owner, pool cloudy blueish

    We bought a new house with a 18x36 swg pool. It looks pretty good I guess, first test with tf100
    Fc 6
    Cc .5
    Ph 7.2
    Ta 130? If I did it right
    Cya 40

    Aqua rite says 3100 on salt, it's close, I had it checked at LPS last week.
    My ph was off the scale at over 8.6
    I added about 1/2 gallon muratic acid and got the pH down.
    First time doing any kind of test besides the simple 3 way test.
    Thanks guys.
    Terry




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    Mod Squad Texas Splash's Avatar
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    Re: New swg ppol owner, pool cloudy blueish

    Hello Terry and thanks for posting those results. Now based on the title of your thread, test results, and because your CYA is low (40) for a SWG pool, that might mean your pool is on the verge of an algae outbreak. It may have been struggling to maintain the proper FC, even though you currently tested FC at 6. What I would recommend is doing an overnight (OCLT) test. This could confirm if the FC dropped too low at some point to allow algae to start blooming. For today, you might consider adding some "regular/plain" bleach as well to bump-up the FC for today. Perhaps increase FC to about 10 for today. Then overnight do the OCLT and see if you pass. Of course if you fail the OCLT, you know you need to SLAM (link below). Maybe give your pool a good brushing today as well in case anything is trying to grow against the pool walls or bottom. Good luck and keep us posted.

    Pool School - Perform the Overnight FC Loss Test (OCLT)
    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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    Mod Squad Jimrahbe's Avatar
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    Re: New swg ppol owner, pool cloudy blueish

    Terry,

    Welcome to TFP.. A Great resource for pool owners from any color creek...

    From your tests, I noticed that your pH is 7.2. Anything between 7.2 and 7.8 is fine, but most SWCG pools like to be on the 7.8 end.

    When your pH goes higher than 7.8, I suggest you only try to lower it to 7.6 or so. I find that my pool will often stay at 7.8 for several weeks, but will only stay at 7.2 for a few seconds..

    When you run the OCLT, make sure your SWCG is off or set to zero output.

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Caldera Spa.

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    Re: New swg ppol owner, pool cloudy blueish

    Thanks for the input guys. I'll fiddle with it tonight.


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    Re: New swg ppol owner, pool cloudy blueish

    Retested tonight.
    Fc is at 11 after running the swg at superchlorinate today.
    I think my ta is around 100
    This was before vacuumingthe pool this afternoon. We'll see what it looks like on the morning. I haven't done the oclt yet.
    But cc was less than .5 today.
    20170427_072057.jpg20170427_072107.jpg20170427_072123.jpg


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    Re: New swg ppol owner, pool cloudy blueish

    It's hard to tell from a photo, but that water looks good to me. It will be interesting to see what the OCLT shows.

    GQ
    ​GeoQuack
    Melbourne, Australia. Plaster pool 44,000 Litre (11,625 US gallons), 2 HP 1 speed pump, Zodiac LM3-40 SWG, Zodiac CX20 robotic cleaner, PoolSkim, solar heating, sand filter, clearchoicelabs.com.au test kit (TF100 or taylors not available in Australia), big eucalypt that drops infinate leaves, gum nuts, pollen and sticks into pool

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    tdp's Avatar
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    Re: New swg ppol owner, pool cloudy blueish

    My SWG pool was cloudy blue on opening last year and cleared up with just getting chemistry right and running the pump.
    ~17,500 gal. IG Fiberglass, Viking "Cambridge"; installed 6/2015
    SWG Hayward Turbo Cell T-9
    Hayward Hi-Rate Sand Filter
    Hayward Max-Flo XL pump
    TF-100 Test Kit/SpeedStir

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