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Thread: Cloudy water

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    Nov 2012
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    Cloudy water

    Have had this year cloudy water that I can't figure out. Cleaned cartridge filters which are almost new and Slammed pool with no noticeable improvement. Today pool shows Chlorine at 5 PPM with salt cell (has never been too low), PH 7.6, Alkalinity 75, Calcium 650, Cyuric Acid 75 PPM, Borates 40, temp 92. Per pool math calculator CSI at .37. I know Calcium is high but have had clear water at these levels in the past. Water is 3 1/2 years old, pump runs 6 hours @ 2100 RPM, 4 hours @ 1200 RPM. Any suggestions anyone???
    14000 gallon quartz pool built in 2004 with 2016 Pentair Intelliflo 2 variable speed pump, Circupool salt cell, Pentair 320 cartridge filter, Hayward pool vac ultra, Helio-coil solar heat, 50 PPM Borax.
    Phoenix, AZ

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    Texas Splash's Avatar
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    Re: Cloudy water

    Hello! Regardless of our history or pool maintenance or age of water, cloudy water is certainly an indication of algae. With a SWG and CYA of basically 80, your SLAM level would be 31. I would first lower pH to about 7.2 then increase FC to 31 and maintain that SLAM level until you pass the 3 TPF SLAM criteria (see SLAMK link below). Your CH is a bit high, but certainly not anything out of the norm for your general area, and no reason for the cloudiness. Perform the SLAM accurately and that should clear-up your cloudiness. 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
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    Mod Squad pooldv's Avatar
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    Re: Cloudy water

    My water is starting season 5! There is no need to drain or change water with TFPC. Except for high CH, and your CH is nowhere near too high. We have people here on TFP with CH well over 1000 ppm who are doing fine.

    Agree with Pat, cloudy water is a sign of algae and a need to SLAM. You can Perform the Overnight FC Loss Test (OCLT) if you are unsure.

    On your CSI, it would probably be better to let your PH rise a bit and try to keep your CSI between 0 and -0.3. CSI on the negative side protects better against scaling, which is what you are most at risk for in your location.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Cloudy water

    I did follow the TFP slamming procedure, FC was 34 until I had FC loss to nothing overnight. Maybe my test regents are bad, the R-0002 is slightly pink. I will do it again with fresh regents

    - - - Updated - - -

    So a PH of maybe 7.8 would lower my CSI that much? is there any other way to lower CSI? I do clean my salt cell too often, like every 3 months.
    14000 gallon quartz pool built in 2004 with 2016 Pentair Intelliflo 2 variable speed pump, Circupool salt cell, Pentair 320 cartridge filter, Hayward pool vac ultra, Helio-coil solar heat, 50 PPM Borax.
    Phoenix, AZ

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    Mod Squad tim5055's Avatar
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    Re: Cloudy water

    Quote Originally Posted by Wrinkled fingers View Post
    I did follow the TFP slamming procedure, FC was 34 until I had FC loss to nothing overnight. Maybe my test regents are bad, the R-0002 is slightly pink. I will do it again with fresh regents
    The SLAM procedure says you must pass all three tests before you end the SLAM

    If you have cloudy water, you have not finished

    SLAM
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Mod Squad pooldv's Avatar
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    Re: Cloudy water

    Quote Originally Posted by Wrinkled fingers View Post
    I did follow the TFP slamming procedure, FC was 34 until I had FC loss to nothing overnight. Maybe my test regents are bad, the R-0002 is slightly pink. I will do it again with fresh regents

    - - - Updated - - -

    So a PH of maybe 7.8 would lower my CSI that much? is there any other way to lower CSI? I do clean my salt cell too often, like every 3 months.
    Enter your numbers in Poolmath and it will calculate your CSI for you. The three primary numbers that contribute to CSI are PH, TA and CH. More here, Langelier and Calcite Saturation Indices (LSI and CSI)
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Cloudy water

    The SLAM procedure says you must pass all three tests before you end the SLAM
    Yeah, like Tim5055 says, you did not finish the SLAM by having your water crystal clear.

    Brush often, run pump 24/7, do everything in your power to get the last bit of cloudiness gone.

    Reread the SLAM article and stick with it.....you are getting there.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
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    Re: Cloudy water

    Thanks for all your folks time. Slamming again and already is clearing up. I didn't follow step three, slam until clear. Really learned a lot on this forum!
    14000 gallon quartz pool built in 2004 with 2016 Pentair Intelliflo 2 variable speed pump, Circupool salt cell, Pentair 320 cartridge filter, Hayward pool vac ultra, Helio-coil solar heat, 50 PPM Borax.
    Phoenix, AZ

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