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Thread: New to BBB - questions.

  1. #1
    Member Jennica's Avatar
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    New to BBB - questions.

    Hi, all! Great site!

    Just started BBB method a few weeks ago. I have a 5000 gal above ground pool with vinyl liner. The water looks great so I guess I'm doing it right.

    FC 4
    PH 7.4
    TC 1
    CYA 40
    TA 200


    I'm having to add anywhere between 1 and 3 cups of bleach each day. I'm also wondering about the TA. Do I need to get that down, and how would I do it?

    Thanks!
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  2. #2
    Senior Member gboulton's Avatar
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    Re: New to BBB - questions.

    Welcome, Jennica

    First, check that TC you posted. If FC is 4, TC must be AT LEAST 4 as well. TC is Total Chlorine, which is FC (Free Chlorine) + CC (Combined Chlorine)

    Could your TC of 1 actually be CC perhaps? If so, please double check that number, and if confirmed, you likely should be shocking your pool. Any CC reading over .5 suggests the chlorine is busy killing something organic.

    As for the TA...yes, you can lower it, pool school tells you how. It is, however, a fairly lengthy process, and probably nothing to worry about..splashing and the high TA will simply prompt pH to rise a bit for a while, and handling that (by adding dry or muratic acid) will bring the TA down over time.
    -Gordon
    Pool School helps me maintain my 13,500G 24' x 48" ASP with Sand Filtration using a TF100 Test Kit and Pool Calculator.
    Remember, the Shock Process should be followed until : 1. CC is less than 0.5 ppm, 2. An OCLT shows a loss of 1.0 ppm or less and, 3. The water is crystal clear.
    --I didn't buy my pool to swim in it. I bought my pool to watch my wife swim in it. :wink:

  3. #3
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    Oops. Yes, I meant to say CC. Most days it's 0 but every once in a while, like today, it's 1. I'll keep an eye on it and will shock it if it stays up.

    Thanks for the reply!
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  4. #4
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    How often should I test for CYA?
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  5. #5
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    Re: New to BBB - questions.

    How often should I test for CYA?
    Maybe once each week for about three weeks if you are fairly new at it. Then, as long as your pool is stable, it's sorta' what you are comfortable with. I do about every three weeks or so but that is after 7-8 years of getting to "know" my pool.
    Dave S.
    Site Owner 42k vinyl and concrete pool, 1.5hp pump, 140gpm filter, No SWG
    TFTestkits owner
    TFTestkits , PoolMath , Pool School

  6. #6
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    Sounds good. Thanks, duraleigh!

    15' Round Above Ground 5,300 gallons
    Cartridge filter

  7. #7
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    I decided to try and lower the TA with the aeration method. When I tested this morning the PH was 7.2. Do I still need to add the MA? Is it the MA that lowers the TA or the actual aeration?

    My #s today.....

    FC 5
    CC .5
    PH 7.2
    TA 180


    Also, while I was waiting for reagents to be delivered I had the pool store test for CYA. They said it was 40. Doing the test several times with the K-2006 I get anywhere from 85-100. I know the pool stores are notorious for being unreliable but would they be off by that much? I'm not sure if I should drain some water out or not.

    I only started BBB a few weeks ago but always used the pucks before that (4 years).

    The water looks better than ever. The first week or so I was losing 1 - 3 ppm of FC per day. The last 3 or 4 days it's only been a loss of 1ppm per day.
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  8. #8
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    Re: New to BBB - questions.

    ALWAYS, ALWAYS trust your test results over anything else....period.

    The TA cannot be PERMANENTLY lowered (except v-e-r-y s-l-o-owly) unless you add both muriatic acid and then perform aertion. So, the answer is it takes both.
    Dave S.
    Site Owner 42k vinyl and concrete pool, 1.5hp pump, 140gpm filter, No SWG
    TFTestkits owner
    TFTestkits , PoolMath , Pool School

  9. #9
    Senior Member gboulton's Avatar
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    Re: New to BBB - questions.

    Quote Originally Posted by Jennica
    I decided to try and lower the TA with the aeration method. When I tested this morning the PH was 7.2. Do I still need to add the MA? Is it the MA that lowers the TA or the actual aeration?
    Adding MA lowers both pH and TA.

    Aeration raises pH without changing TA. The end result : Lower TA

    Also, while I was waiting for reagents to be delivered I had the pool store test for CYA. They said it was 40. Doing the test several times with the K-2006 I get anywhere from 85-100. I know the pool stores are notorious for being unreliable but would they be off by that much? I'm not sure if I should drain some water out or not.


    It's your pool, your test, your process. You have a vested interest in accurate results, and proper maintenance of your pool...thus, a vested interest in correctly performing tests with quality components.

    The pool store, on the other hand, has a vested interest in one thing only : making money. Your pool is no more or less important to them than anyone else's, and their interest in it stops when you stop buying chemicals for it. They have a vested interest in whatever test results lead to you spending more in their shop.

    Trusting your own results is the foundation of BBB.
    -Gordon
    Pool School helps me maintain my 13,500G 24' x 48" ASP with Sand Filtration using a TF100 Test Kit and Pool Calculator.
    Remember, the Shock Process should be followed until : 1. CC is less than 0.5 ppm, 2. An OCLT shows a loss of 1.0 ppm or less and, 3. The water is crystal clear.
    --I didn't buy my pool to swim in it. I bought my pool to watch my wife swim in it. :wink:

  10. #10
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    Everything seems so simple when you have the right help. Thank you both!
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  11. #11
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    I'm currently draining. Luckily my husband is an HVAC guy so he had a Pony pump in his work truck. I should be down 6 inches in 20 minutes.

    So, I'll refill, circulate for about an hour, then repeat?
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  12. #12
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    Re: New to BBB - questions.

    That confuses me...why are you draining?
    Dave S.
    Site Owner 42k vinyl and concrete pool, 1.5hp pump, 140gpm filter, No SWG
    TFTestkits owner
    TFTestkits , PoolMath , Pool School

  13. #13
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    My CYA is 90 ish.
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  14. #14
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    Re: New to BBB - questions.

    My CYA is 90 ish.
    I'm really sorry...I misread that first post to believe that CYA 40ppm was your test result.

    I should've read more carefully and, of course, you are doing the right thing to get that CYA down around 50ppm.
    Dave S.
    Site Owner 42k vinyl and concrete pool, 1.5hp pump, 140gpm filter, No SWG
    TFTestkits owner
    TFTestkits , PoolMath , Pool School

  15. #15
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    No apology needed. I am so grateful for all the input.
    15' Round Above Ground 5,300 gallons
    Cartridge filter

  16. #16
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    Not sure what to think. I drained and refilled 50%. Now I'm getting a CYA of 120. Is this possible? I did the test 5 times, using up reagent like crazy.
    15' Round Above Ground 5,300 gallons
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  17. #17
    Senior Member aa62579's Avatar
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    Re: New to BBB - questions.

    Did you dilute your sample with tap water to get that result?

    You shouldn't use reagent but once during the CYA test, even if you redo the test multiple times. Just keep pouring the sample back into the bottle, shake again, and repeat the test.

    Duraleigh sells individual replacement reagents.
    ~~ Allison ~~
    Intex 18' x 48" Easy Set Pool, approximately 5455 gallons
    Krystal Clear 1500 GPH Filter Pump Model 56635EG - 635 with Auto Timer
    BBB FOR BEGINNERS ~ THIS IS A MUST READ FOR ANYONE OVERWHELMED!!

  18. #18
    Senior Member Richard320's Avatar
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    Re: New to BBB - questions.

    Quote Originally Posted by Jennica
    Not sure what to think. I drained and refilled 50%. Now I'm getting a CYA of 120. Is this possible? I did the test 5 times, using up reagent like crazy.
    Use the same sample, just take multiple readings. Read, pour it back, mix again, take another reading. Lighting makes a HUGE difference.
    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!

  19. #19
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    Yes, I did the dilution method. I added 7 ml of tap water to 7 ml of pool water. Mixed it, poured out half then added 7 ml of reagent, then doubled the reading.

    All total I probably did it about 30 times. 120 is about the average reading.
    15' Round Above Ground 5,300 gallons
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  20. #20
    Member Jennica's Avatar
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    Re: New to BBB - questions.

    I'm wondering if I did the test wrong when I got the reading of 90.
    I followed the instructions on the "Water Testing Instructions on One Page" link:

    a) Measure 4ml R-0013 into the mixing bottle.
    b) Measure 4ml pool water into the mixing bottle.
    c) Measure 8ml tap water into the mixing bottle.
    d) Continue from step 3 above.

    I used 7, 7, and 14 ml because those are what are on my bottle.

    The instructions didn't say to double the result, just to continue from Step 3 which is shaking the mixture, then reading the result.

    Maybe my CYA was really 180?
    15' Round Above Ground 5,300 gallons
    Cartridge filter

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