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Thread: New test kit and new numbers...few questions

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    New test kit and new numbers...few questions

    So I received the TF-100 kit in the mail yesterday and immediatly started testing. A few of my numbers are WAY off....

    FC 2.45
    CC 0.15
    TC 2.6
    TA 360!!!
    PH 7.8
    CYA 100
    CH 250

    So I know the TA is crazy high..don't know how that happened. According to pool calculator I added 1 qt and 2 cups acid and will aerate. I will need to drain some water from pool and refill to lower CYA a bit but when I did the OTO test it is still turning an orange color from so much chlorine but according to the other chlorine tests it seems to be ok...why would this be?
    I have a 15,100 gal IG vinyl pool....
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Re: New test kit and new numbers...few questions

    I forgot to mention that I had also been fighting with a total swamp. We didn't cover the pool this winter or properly winterize other than antifreeze so it was in bad shape. I had dichlor powder from last summer that I used to shock (I now know this is bad after finding this site) which cleared up the pool (finally!!). That I also realize is why my CYA level is high...Would this also have the affect on TA as well?I want to switch over and use only bleach as is recommended here....
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Mod Squad Bama Rambler's Avatar
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    Re: New test kit and new numbers...few questions

    With the TF-100 you can't have 2.45 FC the best you can do is .2 and common is .5 resolution. You should be multiplying the number of drops by .5.
    Post those numbers again.

    Did you get the Speedstir?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: New test kit and new numbers...few questions

    Welcome!

    Retest things. From extended-test-kit-directions-t25081.html

    Sometimes a static electric charge can build up on the R-0009 dropper bottle tip, causing the drops to be smaller than usual and making the test read higher than actual. You can prevent this by wiping the tip of the dropper bottle with a damp cloth or tissue before you start and after each drop.
    There's also some notes in the CYA test that you need to read.

    The learning curve is steep but brief. Don't get overwhelmed.
    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: New test kit and new numbers...few questions

    And don't worry to much about that TA level it will slowly come down as you maintain PH. My fill water is around 300 for TA & CH with rain water and maintaining PH both are already under 200 hundred this year.
    Dan D
    Used 2003 Aqua Leader 27'x52", 17,800 w/10" hopper, SwimPro SW256T 250# sand filter, Hayward PowerFlo LX pump 1hp impellor, Emerson 1 1/2 hp motor, setup Aug 2012 Summer 2011 used Summer Escapes Ring pool 14' x 42", Intex 1600gph sand filter, HTH 6 way test kitTF-100 w/stirrer, Well water @ FC=0, PH=7.2, TA=290, CH=320

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    Re: New test kit and new numbers...few questions

    Ok I see what I did. I looked at the laminated card that came with my test kit and it says to multiply by .05 so that what I did. Took my numbers and multiplied by .5 like you said and that makes MUCH more sense!!

    PH 7.8
    FC 24.5
    CC 1.5
    TC 26
    TA 360

    So obviously my chlorine level is still crazy high after shocking. Do I just leave it and will eventually lower? The kids are wanting to swim but just don't like how high it is. On the bright side the swamp has been taken care of and water is blue. Still slightly cloudy but clearing more each da
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Re: New test kit and new numbers...few questions

    Read through the Pool School section again on the shock process. You will need to pass the test for shocking, including having clear water, and then pass the overnight chlorine test. Then be sure the FC level comes down below shock level before anyone starts swimming.

    What is your CYA level now? Have you drained any of the water yet?
    Indiana, ABG 24'x52" Galveston by Blue Cascade (Craigslist buy w/part of deck included), 13,500 gallons, Intex SWG, solar panels mix 2, TF-100 test kit.

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    Richard320's Avatar
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    Re: New test kit and new numbers...few questions

    Quote Originally Posted by lonestargal
    Ok I see what I did. I looked at the laminated card that came with my test kit and it says to multiply by .05 so that what I did. Took my numbers and multiplied by .5 like you said and that makes MUCH more sense!!

    PH 7.8
    FC 24.5
    CC 1.5
    TC 26
    TA 360

    So obviously my chlorine level is still crazy high after shocking. Do I just leave it and will eventually lower? The kids are wanting to swim but just don't like how high it is. On the bright side the swamp has been taken care of and water is blue. Still slightly cloudy but clearing more each da
    No...you keep FC above 25 (assuming CYA is still 100) until the water is clear, the CC is .5 or less, and the overnight loss is 1.0 or less. Then it will come down on its own in a day or two.
    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: New test kit and new numbers...few questions

    Yes CYA is still 100. I had to work late today so I didn't get to drain. I know the recommended level is 30-50 but we are in such a severe drought where I live right now would it be horrible to keep the level at 100?? Obviously if its gonna cause problems I'll drain but really don't want to if I don't have to.
    I've read pool school for shock process so I will raise FC just a tad to keep it above 25 until all tests are passed.
    This pool is driving me crazy already this year....
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Mod Squad jblizzle's Avatar
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    Re: New test kit and new numbers...few questions

    In Pool School, isn't the shock level for a CYA of 100ppm actually a FC of 39ppm? Did not realize that the calculator was so much lower.

    Just had to check my laminated card. Are you sure yours says .05 and not 0.5? If so, Dave should hear about it.

    Have you done the CYA test diluted? Starting with 50/50 mix of Pool and tap water and then doubling the result? You may be well over 100.
    Jason, TFP Moderator
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    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: New test kit and new numbers...few questions

    Actually one part of it says .05 and another part says .5
    It has to be a typo
    No I have not done a diluted test. I can try that tomorrow. If it is over 100 I would pretty much have to drain right? That's way too high??
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Mod Squad jblizzle's Avatar
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    Re: New test kit and new numbers...few questions

    Anything much over 80ppm starts to get problematic.

    When did you get your kit? Mine is a little over a month old and does not have a typo. We gave seen a few people make the same mistake and wonder if this is why.
    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: New test kit and new numbers...few questions

    I just recieved it 2 days ago. Wish I could take a pic of it but my camera is not working right at the moment...here is what is says though on step 3 of the Chlorine Drop Test:

    "Next, carefully add the R-0871 solution one drop at a time, swirling as you drop. Count each drop until the solution turns back to clear. Multiply the number of drops you added x 0.5 (i.e. 14 drops x .05=7ppm) Record this as Free Chlorine (FC)"

    So I did mess up on my test but it did get confusing and would be easy to multiply wrong. The kit is very well done though and I think it will help me tremendously once I can get the hang of all this. I've had a pool for several years but have always had the pool store or my dad help take care of it. So trying to learn it all on my own now.
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Re: New test kit and new numbers...few questions

    Ok so I retested the CYA this morning using the diluted method and it's showing 160. Looks like I'm gonna have to drain some water, bummer because of the drought.
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    linen's Avatar
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    Re: New test kit and new numbers...few questions

    You are correct on FC, it should be number of drops multiplied by 0.5 (or divided by 2).

    14*0.5=7 ppm

    I agree that you need to do a partial drain/refill. What kind of pool do you have? Could you put your pool and equipment details in your signature.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: New test kit and new numbers...few questions

    I'm in the process of partial drain now. Just hope I don't get caught, will be a major fine!!

    I updated the pool info as best I could. My filter just had sand replaced 2 summers ago and liner was replaced last summer. As far as more details on the filter or pump, it's all faded. If I remember right I think the filter is 150 or 200#?? Does that sound about right?
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    linen's Avatar
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    Re: New test kit and new numbers...few questions

    For a vinyl lined pool, make sure you leave at least a foot of water in the shallowest part to keep your liner in place.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: New test kit and new numbers...few questions

    That's exactly what I did Thanks so much for all the help. I will post new test results after refill and it's circulated for a bit.
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    Re: New test kit and new numbers...few questions

    Ok so I did a partial drain an refill last night. Pool has been circulating for almost 12 hours. Here are the new test results:

    OTO 1
    PH 7.8
    FC 2
    CC 1
    TA 150
    CH 200
    CYA 90

    I know I need to lower PH a tad but the other numbers are a huge improvement from last testing.
    15,100 gal IG vinyl, Hayward Pro Series sand filter, 1 HP pump

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    linen's Avatar
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    Re: New test kit and new numbers...few questions

    90 ppm cya is still very high. I would do another drain refill. It would be good to get it down to 50 ppm cya before doing much else.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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