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Thread: See my results using the TF100 kit; any suggestions?

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    See my results using the TF100 kit; any suggestions?

    Just got my test kit today and did the pool water test. The results:

    FC 4.5
    CC 1
    TC 5.5
    TA 170
    CH 500? (I added 50 drops already and the solution looked like fine pinkish/light red dots floating in the water)
    CYA 70-80? (hint of black dot on 70, and unable to see black dots at 80)
    PH 8
    Salt 1980

    The water is a a bit yellow/green with some sediment on the bottom. So what to do, should I shock the pool? I know I need to adjust my PH and TA - but do I also need to add muriatic acid to lower the PH? Any suggestions or steps to take are appreciated. Thx
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Vette's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    If you have yellow/green water and CC of 1, I would start shocking (I assume you know the shock process used here?) pool-school/shocking_your_pool
    11,700 gallon 21' round 54" deep all-resin AGP - June 2012
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    I use and recommend the TF-100 for testing

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    pwrstrk's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    I agree. At 80 ppm of cya your going to need a lot of bleach.


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: See my results using the TF100 kit; any suggestions?

    I do have several bag of aqua chem. 58% sodium dichloro-s-triazinetrione. Is it a good idea to uses these or should I stick with bleach?
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    pwrstrk's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    If it were me I'd use bleach.


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Richard320's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    It's going to be tough to perform the shock process with CYA that high. However, the expense might be a tradeoff between the cost if the water (That's a big pool!) and the salt you'd lose. If, as you say, it's discolored but you can see to the bottom, it might be worth a try. Your CH is also high, and it will get higher as the summer progresses, so a partial drain might not be a bad idea.

    Use bleach to shock - your CYA and CH are already too high to use any of the powders.

    Whichever you decide - partial drain first or straight to the shock process- do it quick before that greenish tint turns into a greenish sludge.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
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    Re: See my results using the TF100 kit; any suggestions?

    1. Lower your pH using muriatic until you get it down in the mid 7's.

    2. Shock the pool. Do not use that dichlor as it will add a LOT of CYA to your pool and you already have a bit too much. Shock with bleach and follow the article in Pool School PRECISELY until your water is crystal clear.

    3. Your CH and TA are a bit high but disregard them until you get your pool crystal clear.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: See my results using the TF100 kit; any suggestions?

    Wow. I have to add 26 cups of muriatic and 400lb of salt to bring it to a recommend level. I will start those 2 first. Let it run a day than shock.
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Re: See my results using the TF100 kit; any suggestions?

    I would suggest you get a gallon of muriatic acid and put about 1/2 of it in, run the pump for about an hour and then retest.....I think you will be pretty close. I'm not sure how you got 26 cups (about 1.6 gallons?) but I don't think that's right.

    You can add the salt anytime. Don't use the SWG to shock the pool so you could add the salt later.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: See my results using the TF100 kit; any suggestions?

    Quote Originally Posted by duraleigh
    I would suggest you get a gallon of muriatic acid and put about 1/2 of it in, run the pump for about an hour and then retest.....I think you will be pretty close. I'm not sure how you got 26 cups (about 1.6 gallons?) but I don't think that's right.

    You can add the salt anytime. Don't use the SWG to shock the pool so you could add the salt later.
    According to the pool calculator. For 32k pool. Now is at 8 and goal is 7. It comes out to be 215 oz. which is 26 cups. I'll start with half a gallon than retest.
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Mod Squad jblizzle's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    Why are you trying to drop it all the way to 7? Also note the the TA must be set as that affects the pH adjustment.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    Re: See my results using the TF100 kit; any suggestions?

    I am lowering the PH to 7.5. Than start the shocking process.
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Re: See my results using the TF100 kit; any suggestions?

    Here is what currently stands.
    Pool pump been running 24/7 except cleaning filter.

    4/26
    Light green water. Cloudy
    Ph7.5 FC 3.5 CC 0.5
    Add 8(121oz)
    Retest and FC 40

    4/27
    6 AM FC 35 CC1
    Add 1/2 bottle of bleach raise the FC 37
    6 pm FC 32 CC 0.5
    Clean CF psi was > 10
    10 pm FC 28 and looks like CC is less than 0.5
    The water looks white grayish cloudy and maybe a hint of green. The water is improving.
    Starting on the overnight test and see what happen in the morning. Hope the FC holds.
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Mod Squad jblizzle's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    Really no point in doing the OCLT until the water is clear.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: See my results using the TF100 kit; any suggestions?

    Really no point in doing the OCLT until the water is clear.
    Copying jblizzles words for emphasis. Rookies often are anxious to do the OCLT but usually prematurely.

    The OCLT is intended to confirm the END of the shock process when you can visually see your water is perfectly clear or when you have clear water but suspect you may have the beginning of algae. It wastes your chemistry to do it before your water is clear. (However, my two kids in college are very appreciative of any refill business. )
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: See my results using the TF100 kit; any suggestions?

    What test is accurate when FC is at 23?
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Richard320's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    Quote Originally Posted by Ahchoo
    What test is accurate when FC is at 23?
    The FAS-DPD chlorine test - the one with powder - is accurate.

    The OTO chlorine test is accurate, but the scale ends at 5, so you won't find your color there. It will be somewhere in the orange to brown spectrum at 23. So skip it.

    The pH test will be skewed by the high FC during the shock process, so ignore it.

    The TA test may change from green> pink to blue> yellow, but it's accurate.

    The rest don't care. But really, during the shock process, all you need to test is FC and CC using the FAS-DPD test. Don't worry about the rest until the algae is all dead and gone.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: See my results using the TF100 kit; any suggestions?

    I am done with the shock and now I am waiting for the fc level to come down to 5. Than I will do the test.
    33k IG plaster
    Advantage pool pump 1.5 hp
    Compupool cpsc36
    Hayward / Leslie superclear CF 150sq/ft
    TF-100

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    Re: See my results using the TF100 kit; any suggestions?

    Quote Originally Posted by Ahchoo
    I am done with the shock and now I am waiting for the fc level to come down to 5. Than I will do the test.
    I didn't look it up but isn't the recommended fc level at 80 cya much higher than 5? You could just be letting new algae start up if you go too low.
    16 x 32 Vinyl IGP ~22000 G

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    frustratedpoolmom's Avatar
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    Re: See my results using the TF100 kit; any suggestions?

    Quote Originally Posted by Ahchoo
    I am done with the shock and now I am waiting for the fc level to come down to 5. Than I will do the test.
    Which test? No reason to let it drop to 5 to test anything.... and yes, 5 is too low for a CYA level of 80. At a minimum it should be 6, unless the pool is a SWG chlorinated pool. Then the min is 4.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
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