Results 1 to 8 of 8

Thread: Concrete pool - Black spots (Maybe Algae) ??? Need Help

Threaded View

  1. #6
    Join Date
    Jul 2013
    Location
    Northern Illinois
    Posts
    816

    Default Re: Concrete pool - Black spots (Maybe Algae) ??? Need Help

    It depends on your tested CYA level. See: http://poolsolutions.com/gd/best-gue...e-chart.html#a
    Read it and focus then on the Best Guess Chart.

    I know you have a K- 2006 and have been around the block. So you must know that if your CYA is in the high end of the range, bump the shock level FC accordingly.

    If you need help, report your CYA. We will be happy to help with mor specific recommendations!

    Best wishes
    Last edited by FormerBromineUser; 06-21-2015 at 01:21 AM.
    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

Posting Permissions

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