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

Thread: Has our T-cell gone to heaven?

  1. Back To Top    #1

    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    120

    Has our T-cell gone to heaven?

    Hi all...

    We recently had a new digital Prologic unit installed for our SWG system....well, it gave me a salt reading of below 1200 for over a week even though I had added Salt. I was beyond frustrated because I had to leave town and nobody was going to care for the pool for an entire month. I was able to program filtering etc, so that worked while I was gone, however, as I was able to read the levels through the app on my phone the salt level all the sudden sky-rocket to 4200 ppm.....I did a manual test today and the test strips stated that the level is above the number 4 on the strip which supposedly equals 1200 ppm.

    I am at a LOSS, I have no idea what is going on anymore....digital unit says its way above 4000 and manual test strip says 1200....on top of it all the green monster is alive and well and I am ready to fill the dang thing in with concrete (just kidding, I am just super frustrated).

    Could it be that the cell went bad? And if so, should I replace T-15 with a T-9, the pool is barely 20K gallons.

    Read outs today:
    Hardiness: very low
    Total chlorine: very low
    Free chlorine: very low
    PH: 7.2
    Alk: 140
    Stabilizer: below 50

    HELP!!! THANKS!
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Has our T-cell gone to heaven?

    What test kit are you using? You need to drive over to tftestkits.net and get a TF-100 ... you will get it next day. I would not recommend going to a smaller cell than the T-15 though.

    I am not sure what to tell you about the SWG, but to clear the pool up, you do not need the SWG working. You need to follow the SLAM Process which is usually done with the SWG turned off.

    So work on clearing up the pool and then deal with the SWG. Did you add salt with the SWG turned on? That is generally no recommended.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3

    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    120

    Re: Has our T-cell gone to heaven?

    jblizzle -

    Thanks for the reply....yes, I think the SWG was on when I added the salt, was a month ago (and I was gone for that time and just returned)....I will slam the pool and then go from there. I have to take the pool vaccum out and backwash first as there was plenty of dirt in the pool as well (pollen, stringy stuff and lot's of beetles this year-yuck, plus tree frogs who cannot detect the salt I guess....lol). Anyways, thanks again. I will update tomorrow!

    NCSALT!
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  4. Back To Top    #4

    Join Date
    Apr 2009
    Location
    Raleigh, NC
    Posts
    120

    Re: Has our T-cell gone to heaven?

    Hey All-

    Been adding bleach to Slam-Shock the Pool RESULT - the green monster is now gone - still slightly cloudy but definitely blue instead of green.

    BTW: I do have the TF-100 test kit. I am out of the solution to determine the CYA and will need to order that. FOUND IT...got some left to do one test!

    TESTING TODAY:
    Digital Salt Read out: 4100
    Air Temp: 80
    Pool Temp: 79

    BlueBox Kit -
    Chlorine: above 5 (shock level)
    Ph: 7.5

    TA: 50
    CYA/Stabilizer (via test strip as I am out of the solution): 0 IT IS TRULY "0" according to the TF-100 test kit as well....TIME to raise it!!!

    I will read up in a minute how I can get the CYA up, it's been awhile. But the pool is definitely on its way to be clean, clear and swimable.
    As the salt level dropped from 4400 to 4100 I will wait it out for a few more days and see if it drops further. If it doesn't I will drain some water and add fresh water to get to a manageable level.

    Comments, suggestions, please feel free, help is always appreciated.
    Thanks, NCSalt
    NCSalt! IG - Mountain Lake 21x40/Vinyl Liner Fiberglass stairs/Hayward Sand Filter/Polaris 3900 w/Booster-pump (5060)/SWG Aqua Rite-Prologic-T-15 cell/Hayward Elec. Heat Pump/2 skimmers/Gallons: 18900/900 sq ft stamped concrete/Concrete Coping/TF100-Test Kit Hot tub: Dynasty Spa/Neptune Series, 5-person, 400 gallons, carbon filter plus 2 regular filters, LED color lights. "I control my pool, and not the other way around":-)

  5. Back To Top    #5

    Join Date
    Jul 2011
    Location
    phoenix
    Posts
    129

    Re: Has our T-cell gone to heaven?

    If you remove water you will likely lower cya a bit with refill so keep that in mind
    13k IG pebble pool w/waterfall, 1hp whisperflow pump, pentair ccp320 cartridge filter
    Circupool SI45+ swg
    TF100 +speed stir Taylor 1766 salt test

Posting Permissions

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