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Thread: Second Year with TFP. Cloudy Water

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    jkaba's Avatar
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    Second Year with TFP. Cloudy Water

    Hello all,

    I opened May 2nd, to a light green pool. Decided to SLAM, and took FC to 28 for several days. Water cleared considerably, with just a little cloudiness. Here are my numbers on May 4th.

    PF 7.6
    FC 25
    CC <.5
    TA 140
    CYA 70

    Left town for a week, and returned to the same level of cloudiness. I have a SWG, and had it set pretty low to like 20% while I was gone. I have cleaned the pool about 3 times since then, and have out most of the sediment and leaves. Backwashed filter and have been maintaining my numbers in the preferred range, but still hasn't gotten as clear as I had it last year. I started thinking filtration, and so I picked up some DE powder from the pool store and put about 4 cups into my skimmer hoping that it will help filter out some of the finer particles. I also thought I'd do the Overnight Chlorine Loss Test to see if I am dropping FC.
    My numbers today

    PH 7.7
    FC 22
    CC <.5
    TA 115
    CYA 70
    CH 700

    Calcium Hardness has always been high with my pool since my source water tests at 550, but has not been too much of an issue in the past.
    25k gal, 18' x 36' inground vinyl pool, 1HP Hayward Super II Pump, Hayward S244T Sand Filter, Hayward H200 Pool Heater, Circupool Si30 SWG, Polaris 380 cleaner, TF-100 Test Kit.

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    Patrick_B's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Hey jkaba,

    Your SLAM just didn't get done when you left town is all. Simply keep it going until you pass all criteria, and you'll get clear.
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    Mod Squad pooldv's Avatar
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    Re: Second Year with TFP. Cloudy Water

    +1 on needing to SLAM until all 3 tests are passed.
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    BoDarville's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Yep...you need to finish the SLAM until these criteria are met:
    CC is 0.5 or lower;
    You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    And the water is clear.

    Some of the cloudiness may be caused by dead algae. It simply needs to be filtered out, so leave the pump running until the water clears. Keep an eye on the filter pressure and backwash/clean if needed. We recommend backwashing or cleaning the filter when filter pressure rises 25% from the starting pressure of a clean filter .
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    jkaba's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Quote Originally Posted by jkaba View Post
    Hello all,

    I opened May 2nd, to a light green pool. Decided to SLAM, and took FC to 28 for several days. Water cleared considerably, with just a little cloudiness. Here are my numbers on May 4th.

    PF 7.6
    FC 25
    CC <.5
    TA 140
    CYA 70

    Left town for a week, and returned to the same level of cloudiness. I have a SWG, and had it set pretty low to like 20% while I was gone. I have cleaned the pool about 3 times since then, and have out most of the sediment and leaves. Backwashed filter and have been maintaining my numbers in the preferred range, but still hasn't gotten as clear as I had it last year. I started thinking filtration, and so I picked up some DE powder from the pool store and put about 4 cups into my skimmer hoping that it will help filter out some of the finer particles. I also thought I'd do the Overnight Chlorine Loss Test to see if I am dropping FC.
    My numbers today

    PH 7.7
    FC 22
    CC <.5
    TA 115
    CYA 70
    CH 700

    Calcium Hardness has always been high with my pool since my source water tests at 550, but has not been too much of an issue in the past.
    Update: 5/27/15
    Checked FC this morning and its still at 22, so passed OCLT, and combined less than .5, only thing missing is clear water.
    25k gal, 18' x 36' inground vinyl pool, 1HP Hayward Super II Pump, Hayward S244T Sand Filter, Hayward H200 Pool Heater, Circupool Si30 SWG, Polaris 380 cleaner, TF-100 Test Kit.

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    ship of fools's Avatar
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    Re: Second Year with TFP. Cloudy Water

    I will leave this to the experts to further comment on but i know i have read on here that high calcium levels can cause cloudiness.
    21,000 gallon inground
    Haywood Sand Filter
    Vinyl Liner

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    Patrick_B's Avatar
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    Re: Second Year with TFP. Cloudy Water

    In extreme cases, and with certain situations but it's rare. I'm north of 700, and never cloudy unless I lack FC for a while. Many others have high CH with the same results.
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    Re: Second Year with TFP. Cloudy Water

    TA 115
    CYA 70
    CH 700


    That's alot of 'stuff' in the water. I wouldn't expect it to be Crater Lake clear (tm) at that level of dissolved solids, but you should easily be able to see bottom and make out any intake at the deep end.

    What kind of filter do you have ?

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    20k IG PebbleTec w/ STA-RITE PE5E-182L 1HP and Zodiac Polaris PB4 for Polaris 380 vacuum / Hayward ProGrid DE4820 Filter / TF-100 but I havent broken down and gotten a speed stir yet

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    jkaba's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Hayward S244T Sand Filter.

    Put in a couple cups of DE Powder yesterday to see if that will help the filtration. I probably should check my sand, but just purchased this unit last year and had good luck with it til I closed it last fall, so shouldn't be that unless I may have backwashed some sand while dropping my water level down at closing, or some other reason that my sand is not filtering correctly.
    25k gal, 18' x 36' inground vinyl pool, 1HP Hayward Super II Pump, Hayward S244T Sand Filter, Hayward H200 Pool Heater, Circupool Si30 SWG, Polaris 380 cleaner, TF-100 Test Kit.

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    jkaba's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Went home at lunch and water is still cloudy. Its looking better, and I can see the bottom easily, but just not sparkling like it has in years past, so I threw in bleach and took it to FC 29+, and turned the SWG to 80%. Will let it run 29+ for the rest of the week and see if it clears up.

    Will keep you posted.
    25k gal, 18' x 36' inground vinyl pool, 1HP Hayward Super II Pump, Hayward S244T Sand Filter, Hayward H200 Pool Heater, Circupool Si30 SWG, Polaris 380 cleaner, TF-100 Test Kit.

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    jkaba's Avatar
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    Re: Second Year with TFP. Cloudy Water

    6-4-15 Update: I have now been SLAMMING my pool for a week, keeping the FC at 29+. Testing yesterday gave me the values:

    PH 7.7
    FC 32
    CC <.5
    TA 130
    CYA 70
    CH 700

    Water is clear, however not crystal clear like it was all of last year. I could read the writing on my drain cover last year. It seems to have a slight haze to it so far this year. Not sure what to do to get it completely clear.

    Pool.jpg
    25k gal, 18' x 36' inground vinyl pool, 1HP Hayward Super II Pump, Hayward S244T Sand Filter, Hayward H200 Pool Heater, Circupool Si30 SWG, Polaris 380 cleaner, TF-100 Test Kit.

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    Texas Splash's Avatar
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    Re: Second Year with TFP. Cloudy Water

    Appears that even with such an aggressive FC level, the cc is right on the edge - perhaps still doing a little battle with any remaining algae. Maintain and be patient. You appear to be seeing a little improvement each day, so that's good. With constant circulation, filtering, and agitation around the pool hopefully you'll be reading the letters on that drain again soon.
    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
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