Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Indoor pool - CYA or no CYA?

  1. Back To Top    #1
    PresidentSkroob's Avatar
    Join Date
    Jun 2014
    Location
    Toledo, Ohio
    Posts
    6

    Indoor pool - CYA or no CYA?

    As far as I can tell, the previous owners of our house did not use CYA in the indoor pool at all. There was none in their pool chemicals, and I got my testing kit today and the test for it came back without any trace.

    Should I be adding CYA, or just run with it as is and figure that's one less chemical to worry about? Resources I've seen online have suggested it's kind of optional... but which is optimal?
    40,000 gallon, 20'x40' in-ground (gunite) indoor pool built in 1976
    Filter: Hayward S-220T (sand)
    Heater: Sta-Rite Max-E-Therm 200
    Pump: Hayward C48L2N134B1 two speed I think

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Indoor pool - CYA or no CYA?

    Scroll down a bit for chemgeek's answers http://www.troublefreepool.com/threa...an-indoor-pool
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Indoor pool - CYA or no CYA?

    I am sure the link that Richard provided has a LOT of good info.

    The nut shell: We recommend 20-30ppm of CYA in indoor pools (about as low as you can measure) not for the sun protection, but for the buffering effect so the chlorine is not so harsh on your skin, hair, and suits.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4
    PresidentSkroob's Avatar
    Join Date
    Jun 2014
    Location
    Toledo, Ohio
    Posts
    6

    Re: Indoor pool - CYA or no CYA?

    Awesome. Thank you!
    40,000 gallon, 20'x40' in-ground (gunite) indoor pool built in 1976
    Filter: Hayward S-220T (sand)
    Heater: Sta-Rite Max-E-Therm 200
    Pump: Hayward C48L2N134B1 two speed I think

Posting Permissions

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