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Thread: New First test with TFT-100 and first slam

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    New First test with TFT-100 and first slam

    Question after initial test received FC: 0.5 CC: 1.5 TC:2 PH 7.5 TA:90 CYA :40 25,000 gal plaster pool water crystal clear.
    slam with 3 gal 12.5% liquid chlorine
    brushed waited 2.5 hrs
    test: after 7 drops turned clear but after 30 sec turn light pink after each drop clear then light pink at 14 drops was staying clear. what # would you use?
    CC; test after 2 drops turned clear but 30 sec was light(very light pink) after each addition same as above after 3-4 drops stayed clear what # would you use?
    Added two gal
    will brush and retest in 2 hrs

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    Casey's Avatar
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    Re: New First test with TFT-100 and first slam

    Once you get to clear, stop counting. It always turns slightly pink once the test sits and should be disregarded.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Re: New First test with TFT-100 and first slam

    Thanks

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    is this possible

    after second slam FC: 3.5 CC:10 TC:13.5

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    Re: is this possible

    Please keep your posts in a single thread.
    Your other thread suggests that you are in the middle of your first SLAM.

    Your values are possible, they suggest the CYA to ammonia conversion.
    The answer is more bleach.

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    Re: New First test with TFT-100 and first slam

    Quote Originally Posted by Trader7111 View Post
    Question after initial test received FC: 0.5 CC: 1.5 TC:2 PH 7.5 TA:90 CYA :40 25,000 gal plaster pool water crystal clear.
    slam with 3 gal 12.5% liquid chlorine
    brushed waited 2.5 hrs
    test: after 7 drops turned clear but after 30 sec turn light pink after each drop clear then light pink at 14 drops was staying clear. what # would you use?
    CC; test after 2 drops turned clear but 30 sec was light(very light pink) after each addition same as above after 3-4 drops stayed clear what # would you use?
    Added two gal
    will brush and retest in 2 hrs
    on 5 slam

    adding 5 gal 12.5% bleach brush test
    even testing 1/2 hr after and 1 hrs FC: 4-6 can't get to 16ppm CYA: 50 CC: 9
    chlorine smell ammonia smell water crystal clear
    the more chlorine I add the higher the CC climb
    suggestions

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    Re: New First test with TFT-100 and first slam

    You need to continue SLAM.
    Once that chlorine overcomes the ammonia, the CC will drop and you will be able to hold your FC level.

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    Re: New First test with TFT-100 and first slam

    slam every 1/2 hrs FC: 16 to 4.5 in .5 hrs
    adding 4 gal each time trying to get chlorine to start staying long than .5 hrs
    have used 30 gal 12.5% bleach since starting at 6pm yesterday.
    Am I on the right track

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    Re: New First test with TFT-100 and first slam

    Let's assume there is no ammonia in this pool....it really doesn't meet the conditions and that "reason" it far too overworked.

    Trader7111, You tested 4.5 FC at some unposted time. After that test, you added 4.5 gallons of 12 %? to bring Added and present FC to roughly 25 ppm (don't make us guess, report your FC additions in PPM so we don't have to ask 4 gallons of what?

    Test FC again in four hours from the time of your last addition and report that result and how much you re-add to get your FC back to SLAM.

    Also, just as a sanity check, please test the FC with the OTO test (blue box) and describe the color...bright yellow? faint yellow? slightly orange? dark orange?

    So. we'll be looking for two reports 4 hours from when you made your last addition. FAS/DPD FC only and OTO TC only.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: New First test with TFT-100 and first slam

    Quote Originally Posted by Trader7111 View Post
    slam every 1/2 hrs FC: 16 to 4.5 in .5 hrs
    adding 4 gal each time trying to get chlorine to start staying long than .5 hrs
    have used 30 gal 12.5% bleach since starting at 6pm yesterday.
    Am I on the right track
    Yes, you are on the right track. It will take a lot of FC to get rid of the ammonia CC's.

    Keep hammering it
    Last edited by Butterfly; 07-10-2014 at 03:16 PM. Reason: correct ammonia comment
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Re: New First test with TFT-100 and first slam

    Dave
    Tested Initial FC Level 4.5
    SLAM FC with 40-50CYA is 16FC-20 goal 25k gal pool
    added 4 gal 12.5% bleach (1gal will increase 5.15PPM) 4 x 5.15 =20.6 I know 4.5 plus 20.6=25.1 but not getting those readings only getting 16.5ppm testing at manual pool Chlorine entry site in 5 minutes. actual Vs est.
    this is why i am using 4 gal testing every 1/2 hr because chlorine loss is still high (10ppm per 1/2 hr) FC reading at 1/2 are 4.5-6.5FC
    If I wait 4 HOURS FC reading has been 1ppm thats why I starting testing more frequent.
    What would you do? stay at 1/2-1 retest or wait every 4 hours?

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    Re: New First test with TFT-100 and first slam

    3:15 test
    FC:2ppm
    OTO 3ppm
    goal with cya 45 16-20ppm

    2ppm-20ppm=18ppm needed
    adding 3 gal 2 qt od 12.5% bleach
    can't not keep FC ??? after adding over 34gal of 12.5% bleach since 6pm

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    Re: New First test with TFT-100 and first slam

    I have a gut feeling you do not have 12.5% chlorine. I'm not sure what to do about that but maybe others will have a clever way to test.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: New First test with TFT-100 and first slam

    Half hour after next SLAM dose, tell us how much 12.5% chlorine you added and test FC and CC for us.

    Do you see an expiration date on the chlorine?

    Where did you buy it?

    Was it being stored inside a/c or outdoors?

    When did you last test CYA and what was it?

    It would also be helpful to us if you add your pool and equipment specs in your sig.
    Here's how:
    http://www.troublefreepool.com/conte...efore-you-post
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: New First test with TFT-100 and first slam

    after 3 day today test results sun 10am:
    FC:0
    CC:0.5
    PH: 7.2
    TA:50
    CYA: 35
    Water quality: crystal clear

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    Re: New First test with TFT-100 and first slam

    With 0 FC you need to add bleach immediately.

    Also, you shouldn't let FC drop to 0, especially during the SLAM process.

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