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Thread: Do I know what I'm doing? SLAM newbie...

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    HollyGriff's Avatar
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    Question Do I know what I'm doing? SLAM newbie...

    Hello, this is such a great resource and I've been reading A LOT over the past couple weeks. Starting with ZERO knowledge.

    So, we returned after vacation to a pool that had clear water, but lots of mustard looking dust on the walls of our 20,000 inground vinyl pool, with sand filter. Per pool store, CYA was 110,( before vacation). I had added a gallon of liquid bleach morning and midday and brushed walls many times. Husband added trichlor tabs (3?), knowing we would partial drain and refill after 9 day vacation.
    So now we have lots (60% +) of new city water in the pool (I tested FC at 1.5 on sink water).

    Pool is crystal clear, SLAM was started 7/4 evening with liquid bleach per your calculator, today is 7/6...too early to stop SLAM?
    See results below.
    Also is FC shock of 15 "too high", (CYA is now 30), hubby is worried about equipment? -- Because the CYA chart "*" says "not recommended" and our starting CYA was near 20.
    Brushed pool this morning, still some, (slight and MUCH less) light colored dust kicks up here and there.

    Passed OTFC, stayed 15, 10pm to 6am. But, the CC test confused me, so I did it twice.
    The sample seemed to turn a very slight, light pink after going clear at FC 15 then 16.
    Then CC test, sample cleared after 1 drop, then turned slight pink a couple minutes later, cleared again after 2nd drop... does that mean CC is really 1.0, don't stop SLAM? (And why?...if you don't mind explaining the theory of FC vs CC...or point me is okay too).

    FC 15
    CC 0.5
    pH 7.5
    TA 90
    CH 200
    CYA 30

    Thanks for helping answer my ramble!
    Inground, 20,000gal, vinyl 10yrs old, triton ii pump, middle TN,

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    cowboycasey's Avatar
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    Re: Do I know what I'm doing? SLAM newbie...

    CONGRATS, from everything you have said you have passed the OCLT...

    A couple of things, you may "want" (not have to) to keep it at SLAM level 2 more days if you still have "light colored dust" just keep brushing and it will go away..

    CC: after it turns clear count the drops and throw the water out... you are done, it will turn back to pink as it sits but the test is over.. so you had .5 CC or less

    Great job
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    HollyGriff's Avatar
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    Re: Do I know what I'm doing? SLAM newbie...

    Thank you so much, that is so reassuring!
    My next question, is it safe for my kids to swim in? Or is FC too high?
    Inground, 20,000gal, vinyl 10yrs old, triton ii pump, middle TN,

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    cowboycasey's Avatar
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    Re: Do I know what I'm doing? SLAM newbie...

    if your CYA is 30 then your a little high for swimming, wait a day or 2.... when your at or below 12FC then jump on in
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    HollyGriff's Avatar
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    Re: Do I know what I'm doing? SLAM newbie...

    Oops, I see the answer is...safe up to shock level for CYA.
    All set, will monitor for today, thanks again!
    H
    Inground, 20,000gal, vinyl 10yrs old, triton ii pump, middle TN,

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