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

Thread: TA test turned yellow.

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    St. Simons Island, GA
    Posts
    170

    TA test turned yellow.

    Was testing water earlier this morning. TA test went from green to yellow after 11 drops. Supposed to turn red. Any ideas what that means?

    Am slamming, so FC 31, CYA should have been around 75-80 but tested out really low at 40-50. Suspect invalid test and will re-do at sundown. pH was high at 8.0 or higher. Added some acid and will re-test at sundown.
    Home pool: Intex 11,400 gallon AG vinyl pool with sand filter & SWG. Taylor K-2006 test kit - coastal Georgia. I'm also in charge of the Elk's Lodge Pool, which is 55,000 gallons in-ground concrete with sand filter, 2 HP Hayward pump, currently using tri-chlor pucks and cal-hypo system.

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

    Re: TA test turned yellow.

    That is a side effect of your FC level being so high. The test still works just count the yellow as if it was red.

    Don't believe the PH test when FC is that high. PH will read high regardless of what it actually is when FC is that high.
    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
    Jul 2014
    Location
    St. Simons Island, GA
    Posts
    170

    Re: TA test turned yellow.

    Thank you Jason. I read exactly what you posted in the Deep End forum just now.
    Home pool: Intex 11,400 gallon AG vinyl pool with sand filter & SWG. Taylor K-2006 test kit - coastal Georgia. I'm also in charge of the Elk's Lodge Pool, which is 55,000 gallons in-ground concrete with sand filter, 2 HP Hayward pump, currently using tri-chlor pucks and cal-hypo system.

  4. Back To Top    #4
    Beens's Avatar
    Join Date
    Jul 2013
    Location
    Virginia Beach, Va
    Posts
    1,171

    Re: TA test turned yellow.

    You mentioned doing the CYA test again at sundown. Technically that test should be done on a sunny day with the sun behind you so your body is shading the tube while holding it at waist level.

    A test later in the evening, at night, or indoors would be inaccurate. (Someone will correct me if I'm wrong but I'm pretty sure I'm right on this one...)
    18' x 48" (42" water depth) Intex Metal Frame 6,700 Gallons
    Hayward Power-Flo LX 1.0 HP pump
    Hayward Pro Series S166T Sand Filter
    Original Intex Floating Skimmer

Posting Permissions

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