Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: TA climbing

  1. Back To Top    #1
    Kathyonthefarm's Avatar
    Join Date
    Jun 2008
    Chatham, Ohio

    TA climbing

    My TA keeps climbing............rained 2 days ago, a lot, TA was 150 after the rains(140 before),
    TA 160
    PH 7.3 ( down from yesterday of 7.4)
    FC 6 (will be shocking because there is still green )
    CYA 50
    Cal 200

    Inground, vinyl, 34k, sand filter, FULL sun

  2. Back To Top    #2

    Join Date
    Mar 2007
    San Rafael, CA USA

    Re: TA climbing

    Other than test variation error, there's no good explanation I have for that. If there was evaporation and refill with water that had TA (which most water does), then that will lead to a slow rise in TA over time -- that's what happens in my own pool with fill water that has around 80 ppm TA. Normally rain will help aerate the water and will cause the pH to rise with no significant change in TA (a slight drop from dilution, but probably not measurable). Adding acid, of course, lowers both pH and TA.

    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

Posting Permissions

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