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Thread: Cloudy Pool

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    Cloudy Pool

    Hi guys,

    I recently bought a house that has a old 10,000 gal marcite kidney pool. The pool had brown stains on the sides and bottom and need some cleaning up. I followed my local pool stores advice and they had me add a bottle and a half of muriatic acid into the pool to remove the staining. It worked but know my pool has been coudy ever since I started adding chemicals to bring it back in balance. Every time I go in to the store, they have me buy soda ash, pool tonic, metal remover, cya booster, you name it and my pool is still the same! The walls and floor are slightly slimy and when I clean the filter cartridge white cloudy mix comes out of the filter. I can barely see the bottom of the pool on the shallow end but its too cloudy to see the deep end.After reading the forum I ordered and finally received my Taylor 2006 test kit.

    This is my first time doing this but I had a few issues with the testing. When I tested for chlorine, I wasnt able to get the water to change pink with the R-0870 dipper. All I could get it to do was turn murky. I assumed I had no chlorine. My CYA test didn't seem to go as well. I was able to cover the black dot well below the 100 line.

    I'm extremely new to this so any help is really appreciated.

    Thanks,

    Larry


    Here are the numbers I have so far.

    FC: 0
    CC:.0?
    TC: 0?
    CH: 550 PPM
    TA: 230
    PH: 7.6
    CYA: more then 100 PPM

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    Mod Squad tim5055's Avatar
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    Re: Cloudy Pool

    Welcome to TFP!!

    100 is the limit of the CYA test, so at this level we are unsure if it is 100 or some number above 100. Don't equate “just a little over 100” to a number, the tube is not marked for such extrapolation. At this point I would recommend at least a 33% water exchange to get the CYA down into a measurable level. South Florida has a high water table, so lowering the water too much can “float” the pool out of the ground. The water exchange will bring down that high CH you have also.

    I'm a Davie/Cooper City guy, but I'm sure Pompano Beach has multiple pool stores that you can get chlorinating liquid. Most places down there call it liquid chlorine and sell it in 2.5 gallon containers that you leave a deposit on. I wish I could get it here in South Carolina. When you buy it, ask what % it is. Some places sell 10% and others 12.5%. Florida is one of the few places where the pool store folks understand maintaining a pool with liquid chlorine.

    Once you get the CYA to a reasonable level read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end.


    • 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.


    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
    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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    Re: Cloudy Pool

    Welcome to TFP! Tim has given you some great info to get you moving on having a beautiful pool with out the pool store.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Cloudy Pool

    Thanks Tim for the quick reply. I'm going to go try to replace the 33% of the water now. I'll report my numbers when it has fresh water before I SLAM it. Thanks again for your help!

    Larry

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    Mod Squad tim5055's Avatar
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    Re: Cloudy Pool

    Quote Originally Posted by lwick74 View Post
    Thanks Tim for the quick reply. I'm going to go try to replace the 33% of the water now. I'll report my numbers when it has fresh water before I SLAM it. Thanks again for your help!

    Larry
    Good deal, keep us posted!
    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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    Re: Cloudy Pool

    Well I finally was able to remove at least 33% of the water today. I'm filling it up know but I have a quick question. I had some left over test strips that show CYA levels up to 300. I tested my water and its showing 150 cya on the test strip. I played around with the calculator and it was recommending a 67% water change to lower the CYA to 50. I was thinking of pumping out some of the water while I was filling it in order to cycle some of the old water out. Do you guys think this is a good idea?

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    Re: Cloudy Pool

    You can do that. I believe it uses more water doing it that way if I recall from my reading, but can be done.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Cloudy Pool

    Quote Originally Posted by Azgirl71 View Post
    You can do that. I believe it uses more water doing it that way if I recall from my reading, but can be done.
    Thanks for the reply! I'll go ahead and do that. What level cya should I shoot for before I stop the drain/fill process?

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    Re: Cloudy Pool

    Your welcome. Shoot for a 30-50 range.since you need to SLAM.

    Also could you update your signature in settings with your pool and equipment? It really helps us to know what you have to work with.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Cloudy Pool

    Here's my update. After 13 hours of draining and filling, here are my results. I'm estimating I replaced about 50% of my water. I can now see the bottom of the pool but know the water has a green tint. Here are the numbers.

    FC: 8
    CC: .5
    PH: 7.4
    TA: 120
    CH: 310
    CYA: 60

    I'm a little worried about the Green tint to the water. Should I SLAM now or drain some more to get CYA to below 50? I'll update my equipment in my signature now. My stuff is old and most of the labels are faded. (here is what I have..10,000 Gal kidney shaped marcite pool. Filter Hayward C800, Hayward pool pump .75HP)

    Thanks again for everyone's help!

    Larry
    Last edited by lwick74; 06-03-2015 at 10:07 AM. Reason: updated signature

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    Re: Cloudy Pool

    Larry you can SLAM at 60 CYA if you want but it will require larger amounts of bleach.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Cloudy Pool

    Quote Originally Posted by Azgirl71 View Post
    Larry you can SLAM at 60 CYA if you want but it will require larger amounts of bleach.
    I'm going to go ahead and SLAM it. I picked up two 2.5GAL containers of 12% liquid chlorine per Tim's suggestion. I know my Ph is just inside the range of slamming, do you think I should try to lower it to 7.3? Looking at the CYA slam chart, I'm planning to add 1 gallon 1 quart 1 cup of liquid chlorine to the pool to raise FC to 24. Does that sound about right?

    Thanks,

    Larry
    10,000 Gal kidney shaped marcite pool. Filter Hayward C800, Hayward pool pump .75HP

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    Re: Cloudy Pool

    You can lower PH to 7.2 with a little MA it would be better.

    Just use Pool Math to determine how much you add.

    Remember once FC is above 10 PH test will not register correctly.
    The only things you need to test for are FC and CC during the SLAM
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Cloudy Pool

    I cleaned the pool and lowered the PH to 7.2 and started the SLAM! I added the chlorine required from the calculator to bring me to FC:24. It's an hour later so I just checked the numbers:

    FC: 23.5
    CC: .5

    I can't believe how accurate that pool math calculator is! I just added 5oz and I'll check again tonight.
    10,000 Gal kidney shaped marcite pool. Filter Hayward C800, Hayward pool pump .75HP

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    Re: Cloudy Pool

    Good job! Just keep at it and you will be enjoying your pool no time!
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Mod Squad tim5055's Avatar
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    Re: Cloudy Pool

    Keep it up!!
    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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    Re: Cloudy Pool

    I have a few quick questions. I cleaned my filter this morning and noticed it was a dull green. the spot where I cleaned it left a white powder residue. Is that normal? How often should I clean the filter during the slam? I've been using my hayward navigator during the process to keep the bottom clean. Is that ok or should I be on the skimmer only?

    I woke up this morning and the green tint is gone but now its cloudy/white but I can still see the bottom. My FC loss was only .5 and this afternoon my CC level was 0 on the 10ml check. I also ordered a new Filter Cartridge that should show up today. I had no idea how old it was and one of the bands was broken on the cartridge, it was time.
    10,000 Gal kidney shaped marcite pool. Filter Hayward C800, Hayward pool pump .75HP

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    Re: Cloudy Pool

    Just a quick update, I had no FC loss last night and my CC is zero. My pool is still cloudy but I it's getting better. I think changing the filter cartridge with my new one helped.
    10,000 Gal kidney shaped marcite pool. Filter Hayward C800, Hayward pool pump .75HP

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    Re: Cloudy Pool

    Progress is good! Stay at it though! Don't let your guard down until your water is clear so that you are SURE you've met all 3 SLAM criteria.
    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 tim5055's Avatar
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    Re: Cloudy Pool

    The new filter should help. Pat is correct, stick with it. This is the point many people feeling better back,off and let it get away from them again.
    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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