Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: OK to have low TA in spa?

  1. Back To Top    #1

    OK to have low TA in spa?

    I've been having a problem with ph rise recently, and did some research and determined I need to drop TA. It was around 100 ppm.

    I added dry acid, aerate, and continue until my ph stopped drifting above 8. I finally got it to sit around 7.8 and now my TA is 50 ppm.

    I've read that low TA is bad for spa components like the pump and heater, is it true? And spa surface? What about sanitizer effectiveness?

    My spa is 500 gal, using dichlor/bleach sanitizer, ozone generator.

    Thanks
    Intex 15'x48" AG metal frame pool (4,440 gal), Krystal Clear (1600) 14" sand filter, Taylor K2006 test kit, Intex Deluxe Maintenance Kit/vacuum (love it!), Intex Deluxe Skimmer, BBB.

  2. Back To Top    #2
    RNDEBBIEROSE's Avatar
    Join Date
    Jun 2013
    Location
    Hornell, New York
    Posts
    39

    Re: OK to have low TA in spa?

    If my TA goes above 50-60 in my spa, I have problems with PH drifting up. I have read on here that it is perfectly acceptable to keep it that low. I also added 50ppm borates, which also seems to help.
    18 foot round AG vinyl 9,000 gallon pool, Hayward Perflex 1 hp pump, DE filter. Taylor K-2006 Test Kit. Pool new July, 2014.

  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: OK to have low TA in spa?

    TA around 50 plus borates is perfect for a hot tub.
    More here on TA, PH, etc, How do I use Chlorine in my Spa (or pool)?
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4

    Join Date
    Oct 2015
    Location
    Austin, TX
    Posts
    83

    Re: OK to have low TA in spa?

    My TA got down to 30 and made it really hard to control the PH - high one day, add a little acid, low the next.
    Pool: 16,000 gallons, 16x31, 500SqFt gunite pool, White Pebbletec interior, built by Cody Pools. Pentair Intelliflo VS-3050 pump, Pentair Clean & Clear 420 Cartridge Filter, In-line chlor with Ultra UV, PV3 Infloor cleaning, Pentair Easytouch-P4 control. TF-100
    Spa: 525 Gallons, Coast fiberglass spa of unknown vintage and suspect previous care with a 2-speed main pump and a blower motor, both 4HP. 3-step bromine sanitized.

  5. Back To Top    #5

    Re: OK to have low TA in spa?

    Quote Originally Posted by pooldv View Post
    TA around 50 plus borates is perfect for a hot tub.
    More here on TA, PH, etc, How do I use Chlorine in my Spa (or pool)?
    Quote Originally Posted by RNDEBBIEROSE View Post
    If my TA goes above 50-60 in my spa, I have problems with PH drifting up. I have read on here that it is perfectly acceptable to keep it that low. I also added 50ppm borates, which also seems to help.
    Great to know thank you. Borates help maintain stable ph correct?

    I have read Nitros thread I must have missed a few things will read again lol
    Intex 15'x48" AG metal frame pool (4,440 gal), Krystal Clear (1600) 14" sand filter, Taylor K2006 test kit, Intex Deluxe Maintenance Kit/vacuum (love it!), Intex Deluxe Skimmer, BBB.

  6. Back To Top    #6
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,994

    Re: OK to have low TA in spa?

    Ha! I have read this stuff lots of times and still pick up new things. Yes, adding borates helps with PH and other things. More here, Borates - Why and How
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  7. Back To Top    #7

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: OK to have low TA in spa?

    I perennially have trouble keeping the TA up in my spa. It seems to like to stay around 30-40 with my adding lots of TA up chemicals.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

Posting Permissions

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