Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Drain and refill - Want to try BBB

  1. Back To Top    #1

    Drain and refill - Want to try BBB

    We have a 16' X 32" in-ground (3 1/2' to 8' deep). We had to drain and refill as CYA and TDSs were through the roof and we couldn't keep enough chlorine in it (we drained the whole thing). We have had no rain to speak of here for a month and a half and there is a lot of dust (they are excavating for a new housing plan right behind our house causing a lot of dust). We had been using powdered shock and 3" tablets (plus a whole lot of clarifyier, etc). We want to switch to the BBB. Here are our numbers: TDS = 500, CYA = 0 (We added 3.5 lbs of powdered CYA after testing), Total Chlorine = 0.6 (We added 2 gallons of 12.5% shock since testing), Free Chlorine = 0 (we put 3 - 3" tablets in the skimmer since we still have about a half a bucket of the tabs left - Can we use something else to help maintain the FC other than the tablets?...BBB..?), PH >8.8, Total Alkalinity = 319, Total Hardness = 344 (That's Indiana water), Copper = 0, Quat = 0.

    What should we do get things in balance?
    Heated (Electric Heat Pump) 16' X 32' in-ground, vinyl, 1HP pump, Sta-Rite Crystal Flo Sand filter (filter size = 3.1 sq. ft.) Installed in 2007. Has Floor drain, 1 skimmer, and 2 returns.

    Thanks

    Paul

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,089

    Re: Drain and refill - Want to try BBB

    Welcome to the forum!

    Your first step needs to be your own test kit. You simply can't stay on top of the water relying on a pool store for your testing. Your chlorine level will fluctuate hourly. Pool stores are just flat-out terrible at testing. Their results are often no better than guesses. The TF-100 or Taylor K-2006 are the recommended kits. TFTestkits.net is a great source of either kit.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Drain and refill - Want to try BBB

    Welcome to TFP!!!

    First you need to stop having the pool store test your water and get yourself one of the Recommended Test Kits.

    While waiting for it, read Pool School a few times. Do you realize that the tablets and maybe the powdered "shock" are adding more CYA on top of the 3.5lbs you added? If not, better read Pool School again.

    You need to start using liquid chlorine / bleach to raise and maintain the FC in the pool. And you need to get the pH back in the 7s. Those are the 2 most important things right now.

    The BBB method is really just about understanding your pool’s chemistry and through accurate testing, adding only what the pool NEEDS and not what someone wants to sell you.
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Drain and refill - Want to try BBB

    Welcome to tfp, paulyd

    Others beat me too it, here are my comments:

    By the way, you should never fully drain a vinyl pool since the liner will likely not go back into place correctly. Sounds like you maybe got lucky?

    Ignore TDS, it tells you nothing helpful about your pool chemistry since it does not tell what specific "disolveds solid" it is measuring.

    How are you testing? You will need an appropriate test kit. See: http://www.troublefreepool.com/pool-...kit_comparison

    Quote Originally Posted by paulyd
    PH >8.8
    This needs to be taken care of first. Use Muriatic Acid to lower this down to 7.2-7.8. It probably will take multiple applications of the Muriatic Acid, so dose then retest in one hour and recalculate/redose. Repeat until your ph is down in range.

    Quote Originally Posted by paulyd
    We added 3.5 lbs of powdered CYA after testing
    Assuming your pool is rectangular and about 22000 gallons, then you raised your cya by 19 ppm.

    Quote Originally Posted by paulyd
    we put 3 - 3" tablets in the skimmer since
    This would have added another 4.5 ppm for a total of ~24 ppm, we recommend 30-50 ppm cya. Have you looked at this pool school article?: http://www.troublefreepool.com/pool-...mmended_levels

    Have you used any other sources of cya since refilling? Dichlor or trichlor granules?

    Quote Originally Posted by paulyd
    we put 3 - 3" tablets in the skimmer since we still have about a half a bucket of the tabs left - Can we use something else to help maintain the FC other than the tablets?
    Definitely! Use bleach/liquid chlorine. See this pool school article: http://www.troublefreepool.com/pool-..._chlorine_pool

    How does your water look?
    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.

  5. Back To Top    #5

    Re: Drain and refill - Want to try BBB

    I am waiting for TF 100 test kit to come in the mail (should be her tomorrow or Mon). I will add Muriatic acid tonight or tomorrow to bring PH level down (How do I get my Total alk down?). I've read all of pool school and white a few posts - I just want to make sure I am doing it right. I really appreciate all of your help. You're the best!
    Heated (Electric Heat Pump) 16' X 32' in-ground, vinyl, 1HP pump, Sta-Rite Crystal Flo Sand filter (filter size = 3.1 sq. ft.) Installed in 2007. Has Floor drain, 1 skimmer, and 2 returns.

    Thanks

    Paul

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Drain and refill - Want to try BBB

    TA is VERY low priority. It is a pH buffer and with it high, it will just make the pH rise faster. Work on understanding the chemistry, maintaining adequate FC, and keep the pH in range.

    As you lower the pH, the TA will also slowly come down.

    After everything else is understood and balanced, then you can consider being more aggressive about lower the TA following the article in Pool School: Lower Total Alkalinity
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: Drain and refill - Want to try BBB

    I wanted to say welcome to TFP....

    The others have you well covered and you are moving in the right direction. Congratulations on taking over you own pool. You
    wont get into trouble following what we teach here, and it will be easier than you ever imagined.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  8. Back To Top    #8
    gatorbrit's Avatar
    Join Date
    Aug 2013
    Location
    Raleigh,NC
    Posts
    92

    Re: Drain and refill - Want to try BBB

    Quote Originally Posted by Brushpup
    it will be easier than you ever imagined.

    I just want to second that statement. Once you get it sorted, it is so easy - just a quick test, then add a bit of bleach. Takes a few minutes and the result is a sparkling pool.
    18k vinyl IGP, Sand Filter, EasyTouch Control Sys, Pentair Intelliflo, Intellichlor IC 40 SWG, Rheem Heat Pump.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •