Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: High FC Reading

  1. Back To Top    #1

    High FC Reading

    Thanks so much for the help with clearing my swamp. After weeks using tons of bleach, scrubbing, removing debris and testing, I finally have a blue pool that is rapidly clearing up. I brought the pool to shock level one last time yesterday and it held an FC reading of 25 overnight. CYA is 40. Is it safe to get in the pool with a reading that high? Do I need to just keep filtering and wait a few days for the levels to drop to the normal range before getting in?
    Florida Pool:Above Ground, 15,200 gallons, Cartridge, Vinyl Liner

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: High FC Reading

    Generally, with an FC level any where below the shock value for your CYA level is safe to get in. Florida sunshine should drop it pretty quickly. If you're done shocking, you can "cheat" a little and replace a couple of inches of water to lower FC.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  3. Back To Top    #3

    Re: High FC Reading

    I am hoping this means my algae is gone - I am going to keep an eye on it and keep testing.
    Florida Pool:Above Ground, 15,200 gallons, Cartridge, Vinyl Liner

  4. Back To Top    #4
    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina

    Re: High FC Reading

    If your CC is .5 or lower and your FC drops below 16 (shock level for your CYA of 40), as Woodyp said, it is okay to swim..

    Not quite sure from your description, but have you finished shocking? See red info in my sig.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5

    Re: High FC Reading

    I held an FC of 25 all day yesterday and overnight. I've been battling this algae for a few weeks - I think I finally beat it!
    Florida Pool:Above Ground, 15,200 gallons, Cartridge, Vinyl Liner

Posting Permissions

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