Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 11 of 11

Thread: How to slam a new pool with no CYA?

  1. Back To Top    #1

    Join Date
    Mar 2015
    Location
    South Texas
    Posts
    411

    How to slam a new pool with no CYA?

    I have a strange-ish question. We have a new pool that is finally being filled to the top but has been 75% full for several weeks and has begun turning green, etc.

    If we fill it full over the weekend, how much bleach should I add to start? No chemicals of any kind have even been added yet.

    Would you swim in it like that?

    Just curious. We've waited this long (6 months), another weekend isn't that big of a deal, except that it's Labor Day weekend and we're off.

    We could obviously run the pump once full and use chlorinating tablets to start. We're gonna be adding a SWG in a few weeks hopefully
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

  2. Back To Top    #2

    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Location
    Dallas Ga
    Posts
    4,064

    Re: How to slam a new pool with no CYA?

    Which test kit do you have?

    - - - Updated - - -

    It is usually recommended to start by getting CYA in there as soon as possible. That and some bleach, just so the algae doesn't go even more crazy.

    - - - Updated - - -

    Target 30 ppm CYA. Put it in a sock and hang it in front of a return. Give it a squeeze to help it dissolve.

    - - - Updated - - -

    Then use 30 as your CYA and then target 12ppm for your SLAM FC.

    - - - Updated - - -

    Pool Math will tell you the amount to use for the CYA and bleach based on your pool gals.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

  3. Back To Top    #3

    TFP Guide


    Join Date
    Jul 2015
    Location
    Kentucky
    Posts
    1,123

    Re: How to slam a new pool with no CYA?

    +1, Also It can take up to a week for the CYA to register so there's no need to check it again for a few days to see what it's registering. You'll have to add chlorine more often until the CYA gets up high enough to help hold it.

    Liquid Stabilizer although significantly more expensive will register immediately after adding and circulating it. So the choice is yours on which to use, but as pabeader suggested above, refer to Pool math to determine how much to use of whichever one you decide on.

    If you need any help calculating the amount just ask and someone we will be glad to assist you. Have a wonderful day
    24' Round x 4.5 ft deep AGP (15,200 Gallons), Vinyl Liner, Hayward Vari Flo XL Sand Filter- (model SP0714T1),
    TFTestkits , PoolMath , Pool School, RECOMMENDED LEVELS, SLAM & the Chlorine/CYA CHART. Support this Site! TFP Totally Rocks.

  4. Back To Top    #4

    Join Date
    Mar 2015
    Location
    South Texas
    Posts
    411

    Re: How to slam a new pool with no CYA?

    Of course I have the T-100 kit! Thanks for the advice. I will target 30 CYA. My pool is 15,000 gallons so a FC of 12 should be 3.9 jugs which is 3 gallons, if I did Pool Math correctly. ( and 60 oz. of stabilizer)
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

  5. Back To Top    #5

    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Location
    Dallas Ga
    Posts
    4,064

    Re: How to slam a new pool with no CYA?

    Here's a question that might become important as time goes on... You list 15,000 gals. Was that the measured amount when filled or is that the PBs estimate?
    You might want to take this opportunity to do some reverse math to see if you can get a more 'true' number.

    Basically, you target a certain FC keeping close track of the amount and strength of bleach you use. Then when you take your measurement after adding that amount. You tweak the gals until the numbers match.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

  6. Back To Top    #6

    Join Date
    Mar 2015
    Location
    South Texas
    Posts
    411

    Re: How to slam a new pool with no CYA?

    That number is from the manufacturer of the fiberglass pool. But, yes, I like your idea of reverse math and will definitely double check!
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

  7. Back To Top    #7
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: How to slam a new pool with no CYA?

    If it were me I would start with Dichlor shock which adds both FC and CYA we know the FC will get used up very quickly by the green stuff then switch to bleach once your CYA is up to the targeted 30-40 ppm CYA range. (use math not testing to establish maximum amount of dichlor to use)
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  8. Back To Top    #8

    Join Date
    Mar 2015
    Location
    South Texas
    Posts
    411

    Re: How to slam a new pool with no CYA?

    I have some tablets that the pool builder gave me but am assuming that is Trichlor, not Dichlor, correct?
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

  9. Back To Top    #9

    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Location
    Dallas Ga
    Posts
    4,064

    Re: How to slam a new pool with no CYA?

    Although Isaac is not wrong, it is just a different way, from what I've read, then we usually tell new pool folks. Not wrong, just different.
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

  10. Back To Top    #10
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: How to slam a new pool with no CYA?

    pabeader, true, but we usually don't start with a green pool with no CYA.

    Nlindelldc, the downside of the trichlor is that it will dissolve much slower and it is very acidic which may through off your pH
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  11. Back To Top    #11

    TFP Guide


    Join Date
    Jul 2015
    Location
    Kentucky
    Posts
    1,123

    Re: How to slam a new pool with no CYA?

    It's heartbreaking to me that your new pool, that cost you guys all that money, sat there 3/4th of the way full for several weeks with nothing added, nor anyway of circulating it. .

    I'm just curious if there was an issue preventing the PB from filling it completely, or what was their reasoning for not completely filling it, adding stabilizer, and chlorine weeks ago?

    Once you get it filled up, and the levels all stabilized in there be sure and take a picture, so we all can enjoy your new pool with you. Have a wonderful night.
    24' Round x 4.5 ft deep AGP (15,200 Gallons), Vinyl Liner, Hayward Vari Flo XL Sand Filter- (model SP0714T1),
    TFTestkits , PoolMath , Pool School, RECOMMENDED LEVELS, SLAM & the Chlorine/CYA CHART. Support this Site! TFP Totally Rocks.

Posting Permissions

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