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Thread: BBB Day 3

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    BBB Day 3

    Ok, this past Friday I changed over to the BBB method and I'm grateful for all the info on this site. I drained some of my pool yesterday but not too much as I have a vinyl liner. Here are my test results using the Taylor 2006 kit:
    FC-9
    CC-0
    TA-180
    PH-7.6
    CYA-over 100 probably 150
    I plan to keep draining my pool and refilling little by little to get the CYA level down. Does the rainwater help lower CYA levels? Do my test numbers seem ok other than the high CYA level?


    26k gal, IG vinyl, 1 HP Pentair WhisperFlo Pump, Pentair FNS Plus 36 DE Filter, Pentair 460732 MasterTemp 250 NG Heater, King Tec Pool Frog XL Pro Chlorinator/Mineral Purifier, Pentair Kreepy Krauly Prowler 820 robotic cleaner

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    duraleigh's Avatar
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    Re: BBB Day 3

    draining my pool and refilling little by little
    Not sure just how much you mean by that but you can safely drain 1/3 at a time. rainwater does help[ but VERY little....not enough to count on.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    linen's Avatar
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    Re: BBB Day 3

    Welcome to tfp, Erdo

    How does you water look?

    Rainwater can lower cya a little (if you get a lot of rain) and if you pump out pool water and let the rainwater refill (verses just replacing evaporation). One of our special experts, Richard320, captures his roof water and has used that reduce his high CH levels.

    Other than cya, the only other number that is a little high is TA but I wouldn't worry about it unless it causes trouble. Just keep an eye on your ph and when it gets to 7.8, lower it back down to 7.2 using Muriatic Acid. This process will also slowly lower TA.

    Also, you don't list a CH (Calcium Hardness), although that is typically not a problem for vinyl pools until it gets high.
    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: BBB Day 3

    Thanks for the replies. Linen, my water is crystal clear.


    26k gal, IG vinyl, 1 HP Pentair WhisperFlo Pump, Pentair FNS Plus 36 DE Filter, Pentair 460732 MasterTemp 250 NG Heater, King Tec Pool Frog XL Pro Chlorinator/Mineral Purifier, Pentair Kreepy Krauly Prowler 820 robotic cleaner

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    linen's Avatar
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    Re: BBB Day 3

    Since your water is clear, you could attempt to keep your FC high enough for your cya level (as you slowly drop it), but you need to know your cya level more accurately. You could do a dilution where you mix half pool water with half cya free water (tap water will work for this)and redo the test doubling the result you get.
    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: BBB Day 3

    Ok thanks I will do that as I believe my true level of cya is 150-160.
    26k gal, IG vinyl, 1 HP Pentair WhisperFlo Pump, Pentair FNS Plus 36 DE Filter, Pentair 460732 MasterTemp 250 NG Heater, King Tec Pool Frog XL Pro Chlorinator/Mineral Purifier, Pentair Kreepy Krauly Prowler 820 robotic cleaner

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    linen's Avatar
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    Re: BBB Day 3

    Did you get that cya level doing the dilution method?
    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: BBB Day 3

    No linen, pool store reading. I did cya test this morning the regular method but I will try the dilution method as well and then post my results. Thanks.
    26k gal, IG vinyl, 1 HP Pentair WhisperFlo Pump, Pentair FNS Plus 36 DE Filter, Pentair 460732 MasterTemp 250 NG Heater, King Tec Pool Frog XL Pro Chlorinator/Mineral Purifier, Pentair Kreepy Krauly Prowler 820 robotic cleaner

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    linen's Avatar
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    Re: BBB Day 3

    Once you are confident how high your cya is, calculate your target fc value by multiplying your cya value by 7.5%.
    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: BBB Day 3

    Ok thanks linen. My cya with the dilution method is 180 and my fc this morning was 9 and cc this morning was 0.
    26k gal, IG vinyl, 1 HP Pentair WhisperFlo Pump, Pentair FNS Plus 36 DE Filter, Pentair 460732 MasterTemp 250 NG Heater, King Tec Pool Frog XL Pro Chlorinator/Mineral Purifier, Pentair Kreepy Krauly Prowler 820 robotic cleaner

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