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

Thread: Ph bounce what should my ta be?

  1. Back To Top    #1

    Join Date
    Oct 2013
    Location
    Baton Rouge, LA
    Posts
    86

    Ph bounce what should my ta be?

    Hi guys,

    I'm struggling with the constant oh rise in my pool. Usually my ta is around 60-70 and my ph will bounce up every 2 days or so and I have to us acid to bring it down. I noticed the other day my ta had dropped real low to 20ppm, but when my ta was low I had no ph bounce...is there a reason that a lower ta can help with my ph moving every couple of days? I have a swg and the pools about 32000 gallons.

    I'm trying to get ready for a slam to clean the pool out so my levels are currently. Don't know if the levels help but here they are. Thanks in advance.

    Fc 0ppm
    Cc 0ppm
    Ta 60-70ppm
    Ph 8.0 or higher
    Ch ?
    30,000 gallon In-Ground vinyl, small fountain, Polaris 9300 robotic cleaner

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Ph bounce what should my ta be?

    Yes, almost certainly TA related. Higher TA levels, and lower PH levels both make the PH go up (when there is a source of aeration, such as a SWG).

    You don't really want TA below 60 unless you are using borates, at which point you can lower TA to 40.

    In many pools the PH will stabilize around 7.8 when TA is 60, though depending on the amount of aeration, that is not always low enough TA for things to stabilize. You can help things stabilize by not lowering the PH much below 7.8, and by not raising the TA above 60.
    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

  3. Back To Top    #3

    Join Date
    Oct 2013
    Location
    Baton Rouge, LA
    Posts
    86

    Re: Ph bounce what should my ta be?

    Ok thank you. I am preparing to slam the pool, should I lower the ph below 7.8 to slam? I also have a fountain/sprayer attacked to my return jets. Would this also be the cause for my ph rise?
    30,000 gallon In-Ground vinyl, small fountain, Polaris 9300 robotic cleaner

  4. Back To Top    #4
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Ph bounce what should my ta be?

    Quote Originally Posted by Cpool View Post
    Ok thank you. I am preparing to slam the pool, should I lower the ph below 7.8 to slam? I also have a fountain/sprayer attacked to my return jets. Would this also be the cause for my ph rise?
    Yep you want to lower your PH into the low 7's for SLAMing. 7.2 is ideal.
    Yes your fountain sprayer will contribute to PH rise as it is considered aeration.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE 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
  •