Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: Total Alkalinity Jumping?

  1. Back To Top    #1
    Tom Tank's Avatar
    Join Date
    Aug 2014
    Location
    Fuquay Varina, NC
    Posts
    31

    Total Alkalinity Jumping?

    I tested my TA last weekend and noticed that it was at 60. My pH was at 7.5. I thought that I should raise my TA to 70 or 75 so I added the proper amount of baking soda. I added it in 2 days and the amount according to the Pool Math. The last few days, I tested the TA just to see where it was and Thursday it was at 80 and now today it is back to 60. Does it normally fluctuate that amount over the course of the week? Also, my pH did rise to about 7.6 and has stayed there through the different TA jumps. Should I leave it all alone or try to figure out why the TA is jumping so much?
    22,200 gal, IG Vinyl 3.5' - 8.5', Haywood s240 Sand Filter, Polaris 180
    manually chlorinate, 2 skimmers - 1 main drain - 3 returns plus waterfall feature
    TF-100 test kit, pool in sun ~10am - 5pm

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,946

    Re: Total Alkalinity Jumping?

    TA normally doesn't hop around too much unless you do a couple things - add acid (lowers it) or add new water (can raise it). Other than that perhaps something in the testing method? If your pH is staying at 7.6, I wouldn't change anything. 7.6 is a nice number for pH.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,081

    Re: Total Alkalinity Jumping?

    If your test kit is pretty new (a couple of weeks), I may have an answer for you...post back and tell us the age of the kit.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    Tom Tank's Avatar
    Join Date
    Aug 2014
    Location
    Fuquay Varina, NC
    Posts
    31

    Re: Total Alkalinity Jumping?

    I ordered full replacement at the end of March for my TF-100.

  5. Back To Top    #5

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,081

    Re: Total Alkalinity Jumping?

    It's probably fine but read in the directions about the static that can develop with the R-009 and using a damp cloth in between drops to eliminate thaqt phenomenon.

    I usually say it's gone from a new kit in just a couple of weeks but it is worth trying to see if it helps.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

Posting Permissions

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