Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: CYA is there a way to lower without draining?

  1. Back To Top    #1

    Join Date
    Mar 2017
    Location
    SE. TX
    Posts
    52

    CYA is there a way to lower without draining?

    We have finally finished the SLAMing and now I am trying to get all the numbers right.

    Right now
    FC 6.5
    CC 0
    CYA 55
    TA is 130
    PH is 7.7

    I thought I would tackle the CYA problem first and try to lower it the recommended amount. I would love not to have drain it again, is there a way to lower it since it is only a little bit out of whack?

    Then if I lower the PH to 7.0 that should lower my TA right?
    I have a 24ft round pool. 52in deep. 14k gallons. It has a sand filter. It is a chlorine pool that we got March, 2016. Above ground!

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    14,999

    Re: CYA is there a way to lower without draining?

    The only way is to replace some water, but honestly I would not lower it much. Summer is coming on, and most of us in the Southern US find that 40-50, sometimes even 60 is a great place to be. This is most true if you get full sun on the pool all day long.

    Yes, repeated lowering of your pH will bring the TA down, but it will take a little while. Longer or shorter depending on your fill water TA, and the amount of water you replace.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3
    Frankhugus's Avatar
    Join Date
    Feb 2016
    Location
    Danville, CA
    Posts
    190

    Re: CYA is there a way to lower without draining?

    I wouldn't worry about that CYA number vs. your FC reading. Watch it for awhile and see how it does over time. As long as you keep your FC number in range you're fine.

    12,000 Gal, InGround, Spa Attached, Satin-Matrix Northshore Tahoe Pebble-Tec, Remodel 6/15, Taylor K-2006 Kit, Pentair IntelliFlo Variable Speed Pump, Polaris 280 Sweep, Jandy CL460 Cartridge Filter, Solar Heated. Taylor K-2006 Test Kit

  4. Back To Top    #4

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,964

    Re: CYA is there a way to lower without draining?

    For that soon to be, hot Texas Sun, your numbers are just fine. Go swimming!
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5

    Join Date
    Mar 2017
    Location
    SE. TX
    Posts
    52

    Re: CYA is there a way to lower without draining?

    Thank y'all so much!
    I have a 24ft round pool. 52in deep. 14k gallons. It has a sand filter. It is a chlorine pool that we got March, 2016. Above ground!

  6. Back To Top    #6

    Join Date
    Mar 2017
    Location
    California
    Posts
    10

    Re: CYA is there a way to lower without draining?

    I think there's a way. I heard about a pool water recycling service in Vista that uses reverse osmosis technology to lower CYA.
    You may want to try and search something like "Pool Services Technologies" in Google to bring up their website.

  7. Back To Top    #7
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    10,158

    Re: CYA is there a way to lower without draining?

    Let it alone-raising mine to 50 or so tomorrow!
    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!

  8. Back To Top    #8
    Frankhugus's Avatar
    Join Date
    Feb 2016
    Location
    Danville, CA
    Posts
    190

    Re: CYA is there a way to lower without draining?

    Watchful waiting.

    12,000 Gal, InGround, Spa Attached, Satin-Matrix Northshore Tahoe Pebble-Tec, Remodel 6/15, Taylor K-2006 Kit, Pentair IntelliFlo Variable Speed Pump, Polaris 280 Sweep, Jandy CL460 Cartridge Filter, Solar Heated. Taylor K-2006 Test Kit

Posting Permissions

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