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Thread: First time opening pool since joining this forum

  1. #1
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default First time opening pool since joining this forum

    Hi all, Spring is taking forever to warm up here is Wisconsin and I'm finally able to open my pool. Last year I learned more from this forum than I did in the previous 20 years of pool ownership. Because I want to break more of all the bad habits I had pre-forum, I wanted to get your advice on pool opening chemical balancing. I tested the water and have the following
    PH = 8+
    TA = 110
    Hardness = 150
    CYA = 0

    If I've learned anything, I believe the first things I need to get a handle on are the CYA and PH. Am I correct? Thanks
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  2. #2
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    That is correct. Do you have any FC/CC readings?
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

  3. #3
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    Hi, I forgot the FC/CC readings. They are both at zero.
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  4. #4
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    Well, CC of zero is great; FC not so much. What have you done so far? I hope you got the FC to 2ppm.
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

  5. #5
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    All I've done so far is
    skim the pool of winter debris
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  6. #6
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    I would not wait any longer to get some chlorine in there. Do it ASAP. Do you remember quantities and stuff? Do you have some CYA you can start adding?
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

  7. #7
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    Just in case, for now add ABOUT 16 oz of 31.45% MA or equivalent. Add a little over 1/2 gallon 8.25% bleach or equivalent. Then test about a half hour or hour later and see where you are. Let us know what type of CYA you have and we can figure out quantities. You don't want to overshoot your goal.
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

  8. #8
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    I bought some HTH granular conditioner that is 96% cyanuric acid. The package calls for 4 lbs for a 20,000 gallon pool to get a reading of 20ppm. I've added the chlorine and some muriatic acid as well to start bringing the PH down. I'll test in a half hour to see what reading we have.
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  9. #9
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    While you're waiting, how does your water look? Is it clear?
    26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO

  10. #10
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    Water is green and cloudy
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

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