Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Okay to wait til end of season to treat black algae spots?

  1. Back To Top    #1

    Join Date
    Mar 2010
    Location
    Maryland
    Posts
    9

    Okay to wait til end of season to treat black algae spots?

    I have some spots of what I think is black algae in the deep end of my pool. I'll brush it for now and keep chlorine between 5 ppm and 10 ppm, but I'd like to wait until the end of swim season to get serious about treating it (by increasing shock level to 25 ppm and brushing aggressively for a month). Is that a reasonable plan?
    Current #s are
    Water temp 81
    TC 13
    FC 13
    TA 80
    CH 300
    pH 7.5
    40,000 gallons, IG, pebble, SWCG, cartridge, in-floor cleaning system, Maryland

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: Okay to wait til end of season to treat black algae spots?

    What is your CYA? Assuming it's less than 60, I'd say that's not a bad plan. If it's higher than 60, you may want to elevate the FC even more, depending on just how high it is.
    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
  •