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Thread: High CC, doesnt seem to want to drop

  1. Back To Top    #1

    Join Date
    Jun 2007
    Location
    Charleston, SC
    Posts
    151

    High CC, doesnt seem to want to drop

    I did some searching and read the posts that came up, but wanted to ask anyhow. I got my Taylor K-2006 the other day and my CC read 0.6, so I went to shock.

    My readings last night were:

    FC 3.6
    CC 0.6
    PH 7.4
    TA 100
    CH 120
    CYA 45

    I put in enough bleach to bring the chlorine to 20ppm, which I thought would be more than enough to take care of the CC problem.

    Tonight i took the following measurements:

    FC 6.4
    CC 0.8
    PH 7.4
    TA 100
    CH 120
    CYA 45

    How is it possible that after shocking, my CC went up? I went ahead and put enough bleach in to bring the FC up to 20ppm again tonight, hoping that I can kill whatever is causing it to happen.

    Am I on the right track?
    18' Round ABG (8000 gallon)
    Hayward X-Stream Cartridge Filter
    1.5hp Hayward PowerFlo Matrix Pump
    80 sq. ft. solar panels
    Goldline automated solar controller

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,085
    The CC can go up if there are additional organics in the pool that chlorine can combine with. If this happens at a faster rate than they get broken down by additional chlorine and sunlight, then the CC can climb. At some point after combining with all available organics, it should stop climbing and should come down. In some cases it won't come down below a certain point, but that is rare in outdoor pools (it would be from "persistent" combined chlorine that doesn't break down readily).
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  3. Back To Top    #3

    I had this problem a while back...

    Went through ~$100 in Bleach shocking at night and testing in the morning. I would shock to 15PPM FC at night and in the AM I would be back down to 0PPM FC. Whatever was living in the pool was reproducing at about the rate I was killing them off.

    But I was just starting out back then. I have learned that testing often (every couple of hours) and maintaining shock levels until there's 0 CC does the trick (usually no more than a day or two). I consume much less bleach this way. When there's something living in your pool... brute force is the best approach.

    Now I pretty much maintain 0 CC all the time. If for some reason I get even a trace of CC, shock, test often and maintain shock FC levels until I'm back to 0 CC.
    26Kgal IG Vinyl liner
    Hayward 1HP Superpump
    Hayward Pro Grid 4800 DE Filter
    thepoolcleaner pressure side cleaner

  4. Back To Top    #4

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    Apr 2007
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    Sebring, Florida
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    Re: I had this problem a while back...

    eelhc's experience is an excellent example of what it takes to clear a pool.....CONSISTENT levels of high chlorine until the tests indicate success and pool water looks good.

    Time and time again, newbies toss in one big dose of Cl which is quickly consumed leaving the Cl level too low to kill the rest of the organics or even provide adequate sanitation levels. The pool then quickly returns to it's original condition.....a haven for algae to bloom

    If you have problematic pool water, keep your chlorine AT SHOCK LEVEL CONTINUOSLY until the water tests and looks good.

    Don't try to tiptoe up on your pool water........kick it straight in the butt with chlorine and keep kicking it until it looks and tests the way you want.

    PS - please don't misinterpret "newbies" as demeaning........There's not one of us on this forum who hasn't been, at some point, a newbie to pools and their proper care.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5

    Join Date
    Jun 2007
    Location
    Charleston, SC
    Posts
    151
    Thanks for the posts!

    I dont take noob as demeaning at all I am one!

    Hey duraleigh, I am from Raleigh, used to live off of durant/brassfield. Then i lived in Cary off cary parkway for a couple years.

    I come up every month or so to visit my in-laws who now live off glenwood in some new townhomes near what used to be CompUSA.

    Just a unrelated side note
    18' Round ABG (8000 gallon)
    Hayward X-Stream Cartridge Filter
    1.5hp Hayward PowerFlo Matrix Pump
    80 sq. ft. solar panels
    Goldline automated solar controller

  6. Back To Top    #6

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,392
    I've been here since '71.....what a consistant boom town. I moved on the North side of Falls Lake 15 years ago to escape the traffic. Aside from unbearable (to me) hot SE US Summers, it's a great place to live and prosper.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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