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Thread: Figuring out the shock process.

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    Join Date
    Jun 2013
    Location
    Ra
    Posts
    29

    Figuring out the shock process.

    I have my SWG shut done for now trying to get a handle on a cloudy pool. Been having issues with the intellichlor holding and or producing chlorine. The pool was starting to clear immediately after I starting shocking. Started this past Friday at 5PM 2 days ago. The pool right now is crystal clear. Today I noticed white floaters in the skimmer basket which from what ive been reading is dead algae. With the pool clean and clear and no noticeable algae I cannot figure out where the chlorine is going. Any ideas would be appreciated. Here are my numbers.
    TC fluctuating but shooting for a shock level of 17.
    Do have a CC reading of .5
    cya is 40
    PH is 7.3
    AK is 120
    CH is 290

    My rate of chlorine consumtion is about 1ppm per hour.
    12K Gal
    IG SWG Fiberglass
    3 HP Intelliflo Variable Speed
    Pentair Quad DE Filter
    Intellichlor IC 40, TF100 Test Kit

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Figuring out the shock process.

    It's still fighting microscopic algae. Because of the sun, the CC you're forming is dissipating, which is why it looks good when you test. That's why there's that third test to know when you're done with the shock process - the overnight loss test.

    If you started Friday and it looks clear by Sunday, you're doing a fantastic job! I think the best we've had so far for green-to-clean was 4 days last year, and the guy set his alarm and got up every few hours to redose all night long. Just keep the Fc up, and look for hiding places, like under and inside steps and ladders and inside light niches. Keep brushing, too.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3

    Join Date
    Jun 2013
    Location
    Ra
    Posts
    29

    Re: Figuring out the shock process.

    Yes we have made progress but it scares me to not see what I am fighting. Our pool is a one piece fiberglass construction and we have been fighting a metal stain that pops up too. Weird thing is I treat it as metal but shows up no where on the iron and copper testing. But responds to Vitamin C. So we also have the purplestuff in there but I don't have a test kit for the sequesterant agent. Here is a question. Just talking to my wife, should I add a maintenance shot of jacks everyday while I am shocking to guard against it being consumed by the chlorine? I know I am adding more to this but thanks again for the help!
    12K Gal
    IG SWG Fiberglass
    3 HP Intelliflo Variable Speed
    Pentair Quad DE Filter
    Intellichlor IC 40, TF100 Test Kit

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Figuring out the shock process.

    You don't want to add more sequestrant everyday, but perhaps twice as often as you would normally. Getting the sequestrant level several times too high can cause problems, so some extra is a good idea, but don't go overboard.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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