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Thread: Recieved my TF-100 and tested

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    Recieved my TF-100 and tested

    FC 7.5
    CC 1
    TA 150
    CYA 80
    PH 7.5


    It was actually kind of fun. So what do yall think
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    [s:1sa7mw71]How does the water look? CYA is high, but if you keep on top of the chlorine (daily) you should be able to manage.[/s:1sa7mw71]How does the water look? Usually a CC of >.5 means you need to shock. With a CYA of 80, that is going to be a lot of bleach. You may want to replace some water to get that down to 50. Also, you didn't post CH numbers. Just wait for the more experienced people to comment first, because I am still relatively new to this.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
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    Re: Recieved my TF-100 and tested

    JohN asked the correct question....How does your water look?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Mod Squad jblizzle's Avatar
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    Re: Recieved my TF-100 and tested

    -- I was a little slow on this one I see, but will leave my comments that mimic those above --

    How does the water look?

    I would recommend you check the CH ... while low is not a problem for a vinyl pool, high can cause issues.
    You TA is a little high, all this will do is cause the pH to rise more rapidly. If you keep your pH in check, the TA should come down.

    Now the bigger issues:
    Obviously your CYA is about double what we recommend, so either replace half the water, or make sure your FC never drops below 6 ppm.
    BUT,
    With a CC reading of 1 ppm, that usually means there is something in the pool that would require you to go through the shock process.
    Since your CYA is so high, your shock FC level is 31 ppm according to Pool School.

    So, you have to decided, shock process at high CYA & FC -OR- replace water and shock process at lower CYA & FC levels
    Jason, TFP Moderator
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    Re: Recieved my TF-100 and tested

    If the water is clear, is a shock necessary? Either way, I am thinking bring it up to shock and do an overnight FC loss test, and then go from there? Thing is, the shock level is 21, which could be a lot of bleach. For a 13,000 gallon pool (did you post your pool size?) is 364 oz.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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    Re: Recieved my TF-100 and tested

    Water is fairly clear. But I have a tree that's been dropping little white blooms and now some pollen looking stuff. But that's almost done with thank god. I didn't test CH since I have a vinyl liner. I thought I read that it didn't matter so much with vinyl. So ill drain in the next day or so and refill. Then retest
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    You'll want to drain about 40% to get you to 50, or 50% to get you to 40.As for CH, low doesn't matter in a vinyl, but high can cause scaling.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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    Re: Recieved my TF-100 and tested

    Question

    So how would the CYA be affected during the summer and evaporation. Its getting close to the temps to start rising here and I have a good amount of evaporation? So could I slowly lower cya that way or does it not work that way.
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    CYA does not evaporate. The only* way to lower it is by replacing water.
    *-Another option is reverse osmosis, but this is expensive and only available in some areas. So really, the only "easy" option is replace water.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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    Re: Recieved my TF-100 and tested

    no i mean by adding water to refill what has evaporated. Would that slowly lower the cya
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Mod Squad jblizzle's Avatar
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    Re: Recieved my TF-100 and tested

    No. The CYA does not leave with the evaporated water. So when water is low due to evaporation, the CYA would be higher and get re-diluted when you fill back up.


    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
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    Re: Recieved my TF-100 and tested

    thank you
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    FC 3
    CC .5
    TA 160
    CH 220
    CYA measured twice 80 then 70(I'm afraid i'm over thinking this test and forcing myself to see the dot if that makes any sense)
    PH 7.5

    I drained about a foot then refilled. I have a vinyl liner so couldn't go too much further. Had to get creative and drain once past the skimmer by using the vaccum hose hooked up to the skimmer. Took me 3 days(about 3 hours a night) to get the level back up as i'm not home a lot. I'm afraid of what the water bill is going to be.
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    The numbers look pretty good. Is your water clear? It doesn't look like your CYA has lowered much at all.

    Refill water in most areas is not that expensive....$5-10 / 1000gallons.

    Looks like your have some more draining to do to reduce your CYA.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Recieved my TF-100 and tested

    Quote Originally Posted by duraleigh
    The numbers look pretty good. Is your water clear? It doesn't look like your CYA has lowered much at all.

    Refill water in most areas is not that expensive....$5-10 / 100gallons.

    Looks like your have some more draining to do to reduce your CYA.

    thats what i was thinking. I prob need to a few more times. Should I wait to add chlorine till I get the cya where it should be? I mean while im draing and refilling
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    Should I wait to add chlorine till I get the cya where it should be?
    Yes and no. You want to keep chlorine in the pool at all times but there is no sense adding a LOT of chlorine and then draining it out.

    Good plan would be to drain quite a bit more now (at least a foot) and then add chlorine back (bringing it up to about 4-5ppm or so) as you are refilling. You will not be able to keep your FC perfectly but as long as you maintain at least 3ppm or so, you will be fine.
    Dave S.
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    Administrator Leebo's Avatar
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    Re: Recieved my TF-100 and tested

    Quick question just to make sure......

    You don't have a salt water generator do you??

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    Re: Recieved my TF-100 and tested

    nope i use liquid chlorine.

    So im on my next drain and refill. I will repost tests when i get the level back up
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    tested everything again today after letting pump circulate more. I think im starting to get the hang of the testing.

    FC 13
    CC.5
    TA 220
    CYA 60
    PH 8.2
    CH 180

    What do yall think? I know I need to lower the PH. About a 1 1/2 gallons of muratic acid I assume. Thanks all of yall have been most helpful
    32k gallon Inground lazy L with Vinyl Liner. Pentair Superflo 1.5hp pump with a sand filter. Liquid Chlorine

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    Re: Recieved my TF-100 and tested

    Don't test your pH when the FC is above 10ppm.....the results will skew a bit high sometimes. Let your FC drift down below 10ppm and then test pH before you make any adjustments.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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