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Thread: Water testing and left over trichlo

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  1. #1
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    Default Re: Water testing and left over trichlo

    I just entered my new test results. I dumped 4 jugs of bleach last night. I going to put in 4 more tonight. I have a cartridge filter, is it ok to be putting bleach directly in filter basket area or spread around pool? Seems as though I also need a feeder, any recommendations?
    Sean

    15k gal concrete freeform IG pool, Sta-Rite PLM200 cartridge filter, Sta-Rite 3/4HP P6E6D-205L pump, feeding trichlor, 8hrs/day. PF=8

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    Default Re: Water testing and left over trichlo

    I think the cartridge will be find, but if you like, just put one in the skimmer and the rest in the pool.

    You need to continue with the 4 bottle doses daily, till you can hold chlorine overnight. After that, you'll need to achieved 15 - 20 ppm levels, in order to keep your pool algae free, given the CYA=250 level that you reported.

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    Default Re: Water testing and left over trichlo

    New test!
    It appears the chlorine is staying in better but pH is down and TA is up. Both CH and CYA are down slightly.
    I will continue the 4 jugs regimen tonight. As for pH, it took 6 drops to bring the color to 7.5ppm. Should be adjusted before or after adding bleach to pool. Day or night?
    Sean

    15k gal concrete freeform IG pool, Sta-Rite PLM200 cartridge filter, Sta-Rite 3/4HP P6E6D-205L pump, feeding trichlor, 8hrs/day. PF=8

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    Default Re: Water testing and left over trichlo

    It doesn't matter if you add bleach first or Borax but you need to test your pH when the chlorine level is no higher than 10ppm. Otherwise, you'll get a false pH reading. (On kits other than Taylor kits, the pH test is only valid if the chlorine is no higher than 5ppm.)

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    Default Re: Water testing and left over trichlo

    Keep in mind what your goals are:

    1. Chlorine levels stable overnight.
    2. PH between 7 & 8 all the time; for you with high CH, 7.2 - 7.6 would be good.

    3. Once chlorine is stable overnight, you want to maintain FC levels that range between 5 & 10% of your CYA level (225).

  6. #6
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    Default Re: Water testing and left over trichlo

    New results entered
    Chlorine has stayed stable overnight. Unfortunately, with FC at 11ppm, based on your previous post I may be getting inaccurate pH readings.
    I had pool at about 15ppm on FC, but chlorine odor was pretty strong. I figure 11-13 is a decent number with CYA levels where they are.
    Sean

    15k gal concrete freeform IG pool, Sta-Rite PLM200 cartridge filter, Sta-Rite 3/4HP P6E6D-205L pump, feeding trichlor, 8hrs/day. PF=8

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    Default Re: Water testing and left over trichlo

    There should not be any chlorine odor at 15 ppm UNLESS there's something in the water to still oxidize. As we speak, I have a heavily used 200,000 gallon local country club pool at 15 - 20 ppm FC . . . and the water is completely odorless.
    .
    Last edited by PoolDoc; 06-21-2014 at 11:46 PM. Reason: add missing "not" - duh!

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