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Thread: Need help in evaluating my results from my k-2006 kit

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    Need help in evaluating my results from my k-2006 kit

    I want to start by saying my water is clear but by the CC level it looks like I need a slam but before I do I want to run my numbers by someone with more experience. Here are my results:

    TC = 4.0
    FC = 3.2
    CC = .8
    CYA = 70
    PH = 7

    It looks like I will need to achieve a level of approx 28 shock level for the slam but can someone also tell me how much chlorine will be required for my pools size and results above? I know it's frowned upon to use anything other than bleach or liquid chlorine but could I slam with granular since my ph is so low? Any help is appreciated
    11895 gallon, AG, Sand Filter

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    Mod Squad jblizzle's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    Welcome to TFP!!!

    First, start using 10ml water sample for the FAS-DPD chlorine test and then each drop is 0.5ppm which is plenty precise enough ... saves a lot of reagent.

    With clear water, no algae? and just a slightly elevated CC, I am not sure a full on SLAM is needed. I would suggest raising the FC up to at least 10ppm and Perform the Overnight Chlorine Loss Test to see if there is something in the pool requiring the SLAM.

    You should start using PoolMath to calculate how much of a product you need to add to reach a target.

    Why do you think granular chlorine is ok based on your low pH
    If the granular is dichlor or trichlor, that is actually acidic and will lower your pH AND raise your CYA (which is already a little high).
    If it is cal-hypo, then that will add some CH along with the chlorine, but could cause some cloudiness ... although with the lower pH, maybe the cloudiness would be avoided.

    Have you discovered Pool School yet? Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
    Jason, TFP Moderator
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    Mod Squad pooldv's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    Welcome to TFP!
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    Re: Need help in evaluating my results from my k-2006 kit

    Thank you, it is cal-hypo that I have on hand and thought I could possibly kill two birds with one stone (raise PH and chlorine)

    - - - Updated - - -

    Thank you!
    11895 gallon, AG, Sand Filter

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    Re: Need help in evaluating my results from my k-2006 kit

    I'm guessing the pucks along with the cal-hypo is what is also causing my high cya. Should I avoid the pucks all together when chlorination with cal-hypo? I do want to switch to liquid chlorine all together but I've spent so much on this bucket of cal-hypo I feel it's a waste of cash, but then again if it's the root of my CYA issue then maybe I should give it to my neighbor as a gift?
    11895 gallon, AG, Sand Filter

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    Mod Squad pooldv's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    Cal hypo raise CH, not PH. As long as your CH is below 350 or so it is fine to use up your CH. Trichlor pucks lower PH and raise CYA.

    More here on chlorine products
    Pool School - How to Chlorinate Your Pool

    more here on pool chems
    Pool School - Recommended Pool Chemicals
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    Re: Need help in evaluating my results from my k-2006 kit

    Thanks for the help.. I will continue tonight with raising FC up to at least 10ppm and do the overnight test to see if a full slam is in need. Last question, do you think I should bring the PH up prior to raising the FC and doing the overnight test or should I do this after I get my chlorination levels in check? Thanks again
    11895 gallon, AG, Sand Filter

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    Mod Squad jblizzle's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    What is your TA?
    The pH could have already risen some by now.
    Jason, TFP Moderator
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    Re: Need help in evaluating my results from my k-2006 kit

    Ta = 50
    11895 gallon, AG, Sand Filter

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    Re: Need help in evaluating my results from my k-2006 kit

    In addition to the TA my CH is 300 (just throwing it out there). Also, when I came home from work today the water is actually cloudy and not clear.
    11895 gallon, AG, Sand Filter

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    Re: Need help in evaluating my results from my k-2006 kit

    What do you think made the water cloudy? What has changed? Let's get that resolved then I'll have another comment about your Cal-Hypo.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Mod Squad pooldv's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    300 is fine. Cloudy water is usually algae maybe the cal-hypo. Do an Overnight Chlorine Loss Test and see how it does.
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    Re: Need help in evaluating my results from my k-2006 kit

    Thank You
    11895 gallon, AG, Sand Filter

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    Re: Need help in evaluating my results from my k-2006 kit

    Dura: Its algae. I just brushed it and it kicked up green clouds...
    11895 gallon, AG, Sand Filter

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    Mod Squad jblizzle's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    Then no point for an OCLT. You need to follow the ShockLevelAndMAINTAIN Process.
    Jason, TFP Moderator
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    Re: Need help in evaluating my results from my k-2006 kit

    Too late Jblizz but you were correct, I only suffered a loss of 1ppm overnight. I am going to ensure my chlorine stays in check (I did not have this good test kit until now, so I could not keep accurate numbers with the prev test). I'm going to resume getting my PH and TA up as well. I appreciate the help and the advice.
    11895 gallon, AG, Sand Filter

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    Re: Need help in evaluating my results from my k-2006 kit

    Look at jblizzle post above.....you NEED to SLAM your pool. Read the article and we'll help you.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Need help in evaluating my results from my k-2006 kit

    Quote Originally Posted by duraleigh View Post
    Look at jblizzle post above.....you NEED to SLAM your pool. Read the article and we'll help you.
    I'm on it, slam is in process, on my second dose. I think the bottom line here is that I have not been shocking to the appropriate level given the CYA in my pool but rather shocking to the recommended dosage listed on the hypo bucket for my pool size which doesn't take CYA in account.. I should have bought a decent test kit long ago..Thank you all and I will let you all know how it turns out..
    11895 gallon, AG, Sand Filter

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    Mod Squad jblizzle's Avatar
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    Re: Need help in evaluating my results from my k-2006 kit

    Again, we do not shock our pools, so just remove that word as a verb from your vocabulary

    We.only SLAM when there is a problem not on an arbitrary schedule.
    Jason, TFP Moderator
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    Re: Need help in evaluating my results from my k-2006 kit

    Got It ^^^^^
    11895 gallon, AG, Sand Filter

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