Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Opening chemical balancing...

  1. Back To Top    #1

    Opening chemical balancing...

    First time opening the pool! I used the BBB method last year and it worked great. I pulled the winter cover off Saturday morning, washed everything, filled it up from the hose and got the pump running and dumped in the last part of a jug of 12%CL so I could get the jugs filled. After 24h I vacuumed it and the water looks pretty good to me! It's not totally clear, but I can easily count the ridges in the bottom drain and it is clear not green. +1 BBB.

    I did a full test today with the following results:
    FC: 3
    CC: 0
    TC: 3
    pH: 7.5
    T/A: 120
    CYA: 30
    Salt: 1800
    H2O Temp: 60deg

    I don't think I need to do a full shock cycle, as I don't have CC.

    My plan (in this order) is to: (via
    1. add salt (~250lbs) then fine tune.
    2. add stabilizer to bring up CYA ~80oz to bring it to 60 then after it settles out, fine tune to 70.
    3. continue to add 12% liquid CL to keep FC between 3-5 until the water gets warm enough for the SWG to work.

    Do I have this about right? Just double checking - thanks.
    Josh S
    20.8k gal vinyl kidney; 600sqft surf area, Hayward 1HP Super; 300Lb Sand Filter; Aqua-Rite/T-9; RainbowRay LEDs, Jandy Deck Jets; and a whole 'lotta sweat n time...

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: Opening chemical balancing...

    When your cya does go up to 60, and if the swg is not on yet, your FC level should be 5-9 ppm.

    Make sure you are confident that your salt is at 1800 ppm (I saw your other thread but did not have an answer) before adding...easy up, but its drain/refill to reduce.

    If you want, get a head start on combating the swg induced ph rise by working your TA down now using the aeration method.

    Quote Originally Posted by shep377
    I don't think I need to do a full shock cycle, as I don't have CC.
    If your water does not go crystal clear in a couple of days, I would raise it up to shock level and do an OCLT.
    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.

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Opening chemical balancing...

    +1 what linen posted.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

Posting Permissions

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