Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: TA Drop Normal?

  1. Back To Top    #1
    Matchless1's Avatar
    Join Date
    Jul 2014
    Location
    Baton Rouge, LA
    Posts
    254

    TA Drop Normal?

    I started up my plaster pool (see sig for more details) on 7/4/16 and recently finished doing a SLAM after a big storm that threw all my levels off. I run a DEL Ozone EC-20 as my primary sanitation method and 10% LC for residual main body secondary sanitation (hence my low FC targets). I check FC, pH and TA daily and CH and CYA at least weekly, sometimes more often. Recent records shown below. As with any new plaster job, I have been adding acid just about daily to maintain my pH around 7.3-7.8. In doing this, I've noticed my TA steadily drops causing me to have to add baking soda every week to 10 days to get it back within the TFP recommended range. My question is, is this normal or should I be trying to troubleshoot something?

    Note: Just yesterday I added a considerable amount (more than normal) of acid while cleaning off calcium deposits on various stones around the pool, hence the spike (drop) in pH.

    14K gal, IG Shotcrete, Depth: 3'6" to 5'6", Pentair Intellipro XF VS Pumps (2), CCP520 Filter, Intellitouch i9+3S w/ ScreenLogic2, DEL Ozone EC-20 w/ Stenner Pump for Chlorine, Flagstone Coping, Moss/Creek Rock Waterfall, Dolphin 15.5' Slide, Intellibrite 5G Pool Lights (3), Globrites (2), Kichler Underwater Waterfall Lights (4), Paramount Paralevel Auto Leveler, 4'x8'Techno-Solis Solar Panels (14), Dolphin S300i Cleaner, My Pool Build

  2. Back To Top    #2
    VinDeeLoo's Avatar
    Join Date
    Jun 2016
    Location
    Tonkawa/Oklahoma
    Posts
    204

    Re: TA Drop Normal?

    Muriatic acid will lower your TA.


    VinDeeLoo
    7600 gallons ~ AG ~ Summer Waves Cartridge C Filter ~ using pump that came with our Summer Waves 18 x 48 pool ~ Taylor K-2006 (SpeedStir & Sample Sizer) ~ no well water or water restrictions

  3. Back To Top    #3
    Matchless1's Avatar
    Join Date
    Jul 2014
    Location
    Baton Rouge, LA
    Posts
    254

    Re: TA Drop Normal?

    Quote Originally Posted by VinDeeLoo View Post
    Muriatic acid will lower your TA.


    Sent from my iPad using Tapatalk
    Agreed and understood. Just trying to understand if the RATE of TA lowering is normal or excessive. Hoping normal, but also wondering when it might start to level off.
    14K gal, IG Shotcrete, Depth: 3'6" to 5'6", Pentair Intellipro XF VS Pumps (2), CCP520 Filter, Intellitouch i9+3S w/ ScreenLogic2, DEL Ozone EC-20 w/ Stenner Pump for Chlorine, Flagstone Coping, Moss/Creek Rock Waterfall, Dolphin 15.5' Slide, Intellibrite 5G Pool Lights (3), Globrites (2), Kichler Underwater Waterfall Lights (4), Paramount Paralevel Auto Leveler, 4'x8'Techno-Solis Solar Panels (14), Dolphin S300i Cleaner, My Pool Build

  4. Back To Top    #4
    VinDeeLoo's Avatar
    Join Date
    Jun 2016
    Location
    Tonkawa/Oklahoma
    Posts
    204

    Re: TA Drop Normal?

    Put your numbers into pool math and it will tell you how much to expect.


    VinDeeLoo
    7600 gallons ~ AG ~ Summer Waves Cartridge C Filter ~ using pump that came with our Summer Waves 18 x 48 pool ~ Taylor K-2006 (SpeedStir & Sample Sizer) ~ no well water or water restrictions

  5. Back To Top    #5

    Join Date
    Sep 2013
    Location
    Connecticut
    Posts
    728

    Re: TA Drop Normal?

    Quote Originally Posted by VinDeeLoo View Post
    Put your numbers into pool math and it will tell you how much to expect.
    Sent from my iPad using Tapatalk
    I think the poster's question is about the behavior of his two-month old plaster - i.e. whether the chemical demands are normal or not.

    Hopefully someone more knowledgeable about plaster will be along soon. Judging from other threads I've seen, I think it's not unusual for new plaster to take quite a number of months to settle into its 'mature' chemistry; but I know relatively little about this area of pool care, so wait for a more expert opinion.
    18' x 48" ring top pool (Summer Escapes); 5500 gallons; set up June - October, stored during winter; Intex 2500 gph pump (B size cartridge filter) Hayward 21" sand filter + 1.5 hp single speed Powerflo Matrix pump (upgrade October 2016) *** K-2006 test kit, refills from tftestkits

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

    Re: TA Drop Normal?

    I agree with Vin, PoolMath will tell you how much MA will drop TA in the effects of Adding Chems section.
    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
    Jun 2013
    Location
    GTA, Toronto, Ontario
    Posts
    119

    Re: TA Drop Normal?

    Not to hijack, but where'd you get that spreadsheet? Seems pretty slick! Combine that with the brains behind pool math and I'm sure most would be using it to track, I know I would!

    77000L (20500 gallon) vinyl in-ground chlorine double roman pool, 35'x17', Hayward SP3200VSP, Jandy Lite2 LJ400N heater, Hayward S244TC filter, *deleted* Hayward chlorinator, Taylor CK1004FAS+CYA

  8. Back To Top    #8

    Join Date
    Aug 2014
    Location
    Houston tx
    Posts
    2,493

    Re: TA Drop Normal?

    Marla
    No longer living vicariously through other people's pool builds. Pool build is complete on my IG SWCG pool, approx 10,000 gallons. All Jandy equipment - VS 1.5 hp pump, 580 cartridge filter, AquaPure 1400 salt cell, AquaLink PDA system. Dolphin m500. PebbleSheen Blue Surf with shells and beads added. TF-100 w/ SpeedStir. A Houston Pool Build Inside the Loop

  9. Back To Top    #9
    Matchless1's Avatar
    Join Date
    Jul 2014
    Location
    Baton Rouge, LA
    Posts
    254

    Re: TA Drop Normal?

    Quote Originally Posted by Marlahoutex View Post
    That is correct. I love it!
    14K gal, IG Shotcrete, Depth: 3'6" to 5'6", Pentair Intellipro XF VS Pumps (2), CCP520 Filter, Intellitouch i9+3S w/ ScreenLogic2, DEL Ozone EC-20 w/ Stenner Pump for Chlorine, Flagstone Coping, Moss/Creek Rock Waterfall, Dolphin 15.5' Slide, Intellibrite 5G Pool Lights (3), Globrites (2), Kichler Underwater Waterfall Lights (4), Paramount Paralevel Auto Leveler, 4'x8'Techno-Solis Solar Panels (14), Dolphin S300i Cleaner, My Pool Build

Posting Permissions

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