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Thread: SLAM update- odd results not sure where to go from here?

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    Join Date
    Jul 2015
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    Thomasville, NC
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    22

    SLAM update- odd results not sure where to go from here?

    Okay.....this is what I have done and the results I have so far...

    1. Double chekded with Leslie's that water contained no iron ,copper, or manganese. I know they may not be accurate but I have no other way of testing for metals. No metals found. Confirmed CYA at 70 and pH at 7.6


    2. Inital testing wiht FAS-DPD; FC 7ppm, CC=.25ppm. Used phenol red drop test to confirm pH at 7.6. Added 96oz of dry acid to target pH of 7.2. Waited an hour and retested- pH was 7.2.

    3. Caculated my Shock level for SWG to be 28ppm, based on CYA of 70. I caluclated using Pool Math that I needed 1,119oz of 8.25% bleach (121 oz). At 2 pm I added 9.5 bottles of the bleach. Readings have been as follows:

    3pm- FC=48pmm ( overshot the amount of maybe not yet mixed well?)- CC=0.5ppm
    5:30pm- FC-40ppm, CC=0.5ppm
    8pm: FC=31, CC=.5ppm
    9:30am- FC=30, CC=0.5ppm
    2:30pm- FC=27ppm, CC=.25ppm

    I am not losing chlorine as fast as I thought I would. I have attached some pictures of what the pool looks like now. My steps now have a nice brown color to them leading me to believe that this might be a metal issue. I just dont understand why the tests are not showing any metals. What do I do now guys????? Do I continue to SLAM; alhtough I think I could pass the OCLT tonight. I am so furstrated that I want to cry and I just want to swim. I feel defeated and like I just want to put the cover on this thing.

    I have ordered the K-2006 kit for future use and I also went ahead and ordered 2 liters of Metal out and a culator (sp?) patch thingy for the skimmer. I did this because everything I have read indicated that the only reason my steps would turn that color would be metal. HELP!

    Attached Images Attached Images
    20 X 40 in-ground, vinyl liner, 36K gallons, SWG, sand filter.

  2. Back To Top    #2
    Mod Squad pooldv's Avatar
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    DFW, TX
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    Re: SLAM update- odd results not sure where to go from here?

    I think you need to continue the SLAM and worry about metals after it is finished. There is no way that the SLAM could be complete tomorrow.

    You are done when:
    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.

    that water is not clear.

    28 is correct shock level for FC.
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    Join Date
    Jul 2015
    Location
    Thomasville, NC
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    22

    Re: SLAM update- odd results not sure where to go from here?

    Thanks....I'll keep slamming. Tested at 8pm and was at 25FC. I added 160oz of bleach to bring it back up to 28ppm. Test again in the morning

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