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Thread: First time opening pool since joining this forum

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  1. #1
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    I just saw your edit with your test results. Good job keeping FC towards 15. Remember, no lower than 12. Assume you are at 30 CYA for your calculations.

    You will save on reagents if you use the 10ml sample instead of the 25ml. Use 1 scoop of powder, then add R-0871 dropwise. Multiply by 0.5. In other words, 23 drops is 11.5ppm.

    Also, check your supply of R-0871. Order more when it looks low so you don't run out! You need plenty when you are at shock level.
    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

  2. #2
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    Yeah, I found out quickly last year how much R-0871 you can go through. I use the 25 ml sample only if I know my levels are low. I was actually surprised yesterday when it was where it was because of how much algae my pool cleaner stirred up. This morning my pool color is a light green. Still can't see the bottom of the deep end, but definite progress.
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  3. #3
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    How did things go over the long weekend? I hope you were able to stay on that FC and keep it at shock level or above! Let us know.
    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

  4. #4
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    Hi, The weekend was no problem. Ran the pool cleaner the whole time and had to backwash often. We had a downpour on Sunday that added about 3" to the pool and brought the FC down to about 5.5. I've needed about a gallon of 12.5% each day to keep the chlorine level at 14 or higher. Testing tonight when I got home from work I found my FC/CC was at 6.5/.5. My PH is 7.2. Alkalinity is 110 and hardness 150.
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

  5. #5
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    817

    Default Re: First time opening pool since joining this forum

    Well, the CC sure looks better! There's no need to retest your TA and CH right now. (Remember that you can only accurately test pH with FC levels under 10). So don't worry about pH either for now.

    How does the water look? How often are you able to check FC?

    Get that FC back up and now that your CYA should be there, bump the FC up to a minimum of 15. Since you're working during the day, you could raise it higher in the morning so that it doesn't drop below 15 during the day. You can go higher if you don't plan on swimming.
    Last edited by FormerBromineUser; 05-26-2015 at 10:46 PM.
    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

  6. #6
    Join Date
    May 2014
    Location
    Sussex, WI
    Posts
    68

    Default Re: First time opening pool since joining this forum

    Am I getting too impatient if my water hasn't cleared up. I'm going through about 2 gallons of 12.5% a day to keep the FC up over 15. My CC is hovering at .5 to 1. All my other tests look good, but my water is a very pale teal color and I can't see the bottom yet. Don't know if it matters, but we've had a lot of rain this past week.
    25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump

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

    Default Re: First time opening pool since joining this forum

    Patience is the hardest part of the process, for sure! Have you tested your CYA after your addition? The rain might have diluted it a bit.
    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

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