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

Thread: Fill water high in both CH and TA

  1. Back To Top    #1
    TxSkye's Avatar
    Join Date
    Apr 2008
    Location
    Danbury, Texas
    Posts
    11

    Fill water high in both CH and TA

    I have a few questions regarding high CH and TA. I have an 18’ x 48” easy set vinyl. I fill my pool with well water, which is high in both CH-640 and TA-500. My current test readings are:

    FC 4
    CC 0
    TC 4
    PH 7.2 (I am working on my TA and aerating)
    TA 310
    CH 640
    CYA 30

    I use 6% bleach as my main source of chlorine, and keep the small 1” pucks that go in the filter as an alternative if I’m away for the weekend. I know they add CYA, but since I empty the pool each year, I don’t believe they would bring it too high to be manageable. Pool is in full sun all day and gets a fair amount of use daily.

    Since I use the same well water to top off the pool I cannot do anything about the high CH. I have added 80# of solar salt just to improve the feel of the water. Knowing that each time I add water I’m raising my TA again should I continue the cycle of lowering it, and if I never get it down to the recommended level, what do you suggest as an acceptable alternative? With a higher TA at what level should I keep PH and FC?

    Any thoughts or suggestions would be greatly appreciated.

    Water looks good!



    Rigged up an aerator with a piece of flex hose and an old vacuum attachment.

    5600 Gal.
    18'x48" Easy Set
    1500 GPH Pump/Cartridge Filter

  2. Back To Top    #2

    Join Date
    Jun 2008
    Location
    Marana, AZ
    Posts
    347

    Re: Fill water high in both CH and TA

    Cool aerator!
    Above ground soft side Omega pool
    20 feet diameter, 4 feet deep
    Hayward sand filter
    Hayward 1 HP Matrix pump
    Hayward Aquabug Automatic Pool Cleaner

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Fill water high in both CH and TA

    Try to keep your PH between 7.2 and 7.4 and keep working on lowering TA. Your TA and CH levels are extremely high, your fill water is right on the edge of scaling even with the PH at 7.2. By keeping TA down you will still have some safety margin before scaling starts even when it is right after adding water with the PH is 7.4.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. Back To Top    #4
    TxSkye's Avatar
    Join Date
    Apr 2008
    Location
    Danbury, Texas
    Posts
    11

    Re: Fill water high in both CH and TA

    Thanks swimgirl, I thought it was kinda cool myself, for a quick DIY

    Thank you Jason, I was worried about scaling and cloudy water. When I let the pH get up to 7.8 it seems as though the water gets slightly cloudy. Everyone else says the water looks real clear, but I can see a difference. I'll continue to work on the TA and keep pH at 7.2 - 7.4
    5600 Gal.
    18'x48" Easy Set
    1500 GPH Pump/Cartridge Filter

Posting Permissions

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