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Thread: Tested my brother in laws pool....

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    kenmar's Avatar
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    Apr 2009
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    Schnecksville, PA
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    Tested my brother in laws pool....

    Hi All,

    Under the guise of wanting to test out my fancy TFP test kit, I asked my brother in law if I could test his pool water.
    I actually was curious to see for myself what readings a "3" tab/Non-BBB user" would have in their pool.

    He has a circular Ag pool of unknown gallonage.
    To be fair, he told me has has done nothing with it this year (because it has been so cool and rainy in northeast PA)

    Here are my test results:

    FC: 0 I have never seen this before, at least in my pool
    CC: 0
    PH: 6.8 or lower As soon as the drops hit the water, they turned yellow
    TA: ??? I have never seen this either, the green drops turned red as soon as I added them
    CYA: >100


    OK, even though I am a noob, I think his pool is in serious trouble.
    What should I suggest to him? (other then sending him a link to this site )


    -Ken-
    20'x40' / 30,000 Gal / In Ground / Vinyl
    Pentair FNS 48 DE Filter / Pentair Challenger 1.5 HP Pump
    Jandy Lite2 400k BTU Propane Heater / Dolphin Dynamic cleaning robot
    TF-100 Test Kit / BBB
    Creator of SimplePool (BBB Friendly Android App) http://www.simplepool.net

  2. Back To Top    #2
    Guest

    Re: Tested my brother in laws pool....

    get some soda ash in the pool ASAP before he ruins his liner (will raise both TA and pH), drain out at least half the water and refill to get the CYA down to below 60 ppm. and get some chlorine in the pool in that order. Oh yeah, get a decent test kit and ditch the trichlor!

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    kenmar's Avatar
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    Apr 2009
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    Schnecksville, PA
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    Re: Tested my brother in laws pool....

    TA: ??? I have never seen this either, the green drops turned red as soon as I added them
    Like I said, I have not seen this before.... what does this mean?

    -Ken-
    20'x40' / 30,000 Gal / In Ground / Vinyl
    Pentair FNS 48 DE Filter / Pentair Challenger 1.5 HP Pump
    Jandy Lite2 400k BTU Propane Heater / Dolphin Dynamic cleaning robot
    TF-100 Test Kit / BBB
    Creator of SimplePool (BBB Friendly Android App) http://www.simplepool.net

  4. Back To Top    #4
    Guest

    Re: Tested my brother in laws pool....

    Quote Originally Posted by kenmar
    TA: ??? I have never seen this either, the green drops turned red as soon as I added them
    Like I said, I have not seen this before.... what does this mean?

    -Ken-
    It means that TA is 0 ppm. TA is the meaurable part of the carbonic acid/bicarbonate/ carbonate buffer in the water. At normal pool pH there is practically no carbonate, and a balance between bicarbonate and carbonic acid. When the pH is very low there is no bicarbonate and only carbonic acid in the water and since only the bicarbonate and carbonate are measurable and are what we call TA it means the TA is 0 ppm. It is actually quite common on pools run on trichlor when there is not proper water tesing going on and pH and TA are not being monitored. Trichlor is very acidic and 'eats up' TA and causes pH to drop. The low pH and 0 ppm TA go hand in hand. You cannot have one without the other.

    BTW, I can tell you the pH is WAY below 6.8 but that is the lowest that phenol red can measure. pH is probably closer to 4 and the liner is in grave danger if immediate action is not taken.

  5. Back To Top    #5
    kenmar's Avatar
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    Apr 2009
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    Schnecksville, PA
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    Re: Tested my brother in laws pool....

    Yikes!!

    Now how do I TELL him his pool chemistry is severely messed up, and he is in imminent risk of damaging his pool equipment?

    I know, I'll tell my sister.

    -Ken-
    20'x40' / 30,000 Gal / In Ground / Vinyl
    Pentair FNS 48 DE Filter / Pentair Challenger 1.5 HP Pump
    Jandy Lite2 400k BTU Propane Heater / Dolphin Dynamic cleaning robot
    TF-100 Test Kit / BBB
    Creator of SimplePool (BBB Friendly Android App) http://www.simplepool.net

  6. Back To Top    #6
    frustratedpoolmom's Avatar
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    May 2007
    Location
    SWSuburban Chicago, IL
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    Re: Tested my brother in laws pool....

    Quote Originally Posted by kenmar
    I know, I'll tell my sister.
    Now you've got it!
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  7. Back To Top    #7
    Guest

    Re: Tested my brother in laws pool....

    Show him this thread and blame me!

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