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Thread: New pool

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    New pool

    Hello,

    We just got (3 weeks) our new 24ft above ground pool (~13500 gallons). Started out at the pool store, with there recommendations. Now, I am getting on the bbb system, and received my tf100 test kit today.

    I had the water tested at the pool store this morning, and there readings were:

    TC 5
    FC 5
    CC 0
    PH 7.8
    TA 125
    CH 275
    CYA 100
    TDS 500

    My readings are:

    TC 9
    FC 9
    CC 0
    PH 7.8
    TA 120
    CH 290
    CYA 25

    For the most part everything looks good I think. My concern is with the cya. Over the 4 readings done at the pool store it started out at 0, then went up to 60, 80, and 100. This is with adding 8lbs of stabilizer, and going through 9, 3" pucks.. Best I can tell from my research, that should put the cya at ~100, but I have done 3 tests, and followed the instructions, as well as the advice here on doing the test. What do you make of this, and which reading would you use? Should I drain water and refill, or add more stabilizer?



    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

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    Re: New pool

    Pool store tests are notoriously inaccurate (especially for CYA). But, that being said, you still added a lot of stabilizer.

    How long ago did you add the stabilizer? Did you use the granular type? (I assume so since you are speaking in weight, not volume). If so, this can take up to one full week to show up on your test.

    I would trust the TF-100 much more than the pool store, just make sure you wait long enough before testing water. If your CYA really IS 100, then yes, a partial refill will make it much easier to maintain your pool in the future.

  3. Back To Top    #3

    Re: New pool

    It has been 3 weeks since the initial addition of stabilizer (granular). Then the addition of the 3" pucks over the last few weeks..

    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

  4. Back To Top    #4
    Isaac-1's Avatar
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    Re: New pool

    If you added the dry CYA stabilizer to the skimmer then backwashed the filter (if you have sand or DE) within a day or two you may have backwashed out most of the CYA since it does take afew days to disolve. Alternatively I would suggest you try retesting with the TF-100 kit, my understanding of the CYA test, is it should be done outdoors with your back to the sun, mix, vigorousely shake, wait at least 30 seconds, shake again, then pour and read.

    Since the math and at least one test result show high CYA I suspect you will end up having to dump and refill at least 50% of your water to get down to managable CYA levels, then avoid trichlor pucks, etc.

    sorry you were pool stored
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  5. Back To Top    #5

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    Re: New pool

    Quote Originally Posted by Isaac-1
    sorry you were pool stored
    hahahaHA! I like how you turned 'pool store' into a verb!

  6. Back To Top    #6

    Re: New pool

    Quote Originally Posted by Isaac-1
    If you added the dry CYA stabilizer to the skimmer then backwashed the filter (if you have sand or DE) within a day or two you may have backwashed out most of the CYA since it does take afew days to disolve. Alternatively I would suggest you try retesting with the TF-100 kit, my understanding of the CYA test, is it should be done outdoors with your back to the sun, mix, vigorousely shake, wait at least 30 seconds, shake again, then pour and read.

    Since the math and at least one test result show high CYA I suspect you will end up having to dump and refill at least 50% of your water to get down to managable CYA levels, then avoid trichlor pucks, etc.

    sorry you were pool stored
    That's kind of what I'm thinking. But, I have done the test myself the times, and the dot is clearly visible, at least way past 100.

    As per backwashing, etc.. I have a cartridge filter, and have not cleaned it yet, so everything I put in, should be there.

    Think I will try another test tomorrow, and mabye try to locate another pool store, and at least get another test to compare with.

    Yes, I was pool stored! Should have known better....



    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

  7. Back To Top    #7

    Re: New pool

    Not trying to hi-jack the thread, but I'm a little confused on maybe either how you said, or how I read "and the dot is clearly visible, at least way past 100".....
    As you fill the tube, the value should be going down.... if I am in my right mind...(and I probally ain't!!)
    Just sayin!!
    Noobie to TFP myself.....learning alot from so many.
    Later!!!
    16,000 IG, SWG, 175 sq. ft. cartridge, 1.5 hp pump, vinyl, Charlotte NC
    TF-100, Pool School, Pool-Calc

  8. Back To Top    #8

    Re: New pool

    Yea.. I can see the dot way past 100.. As in the tube is filled past the 100 mark...

    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

  9. Back To Top    #9

    Re: New pool

    LOL...I'm still confused......................
    16,000 IG, SWG, 175 sq. ft. cartridge, 1.5 hp pump, vinyl, Charlotte NC
    TF-100, Pool School, Pool-Calc

  10. Back To Top    #10
    Isaac-1's Avatar
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    Re: New pool

    There have been reports of at least one batch of CYA stabilizer a couple of years ago that had no CYA in it, perhaps you got lucky and had a bad batch
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  11. Back To Top    #11

    Re: New pool

    Quote Originally Posted by Isaac-1
    There have been reports of at least one batch of CYA stabilizer a couple of years ago that had no CYA in it, perhaps you got lucky and had a bad batch
    This thought had crossed my mind.. would be nice if that were the case.. I'll try a couple of more tests, and see what happens.

    Thanks for the help and suggestions!

    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

  12. Back To Top    #12
    linen's Avatar
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    Re: New pool

    Try reviewing the cya extended test kit directions in case that reveals something about your process.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: New pool

    kbrabble,

    WHEN did you put the CYA in your pool? Test results for CYA will not show up accurately until the CYA has been in your pool for 4-7 days. If that time has passed, you should trust your own results...no one else's
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  14. Back To Top    #14

    Re: New pool

    Well, did another couple of tests today, outside with my back to the sun, as suggested in the extended instructions. Both times the reading was ~45 so I think I am going to stick to that reading... Thanks for the advice.



    24' x 52" Sharkline AGP, 12800 Gallons, Pentair Clean & Clear 150 Sq' Cartridge Filter System with 1-1/2HP Dual Speed OptiFlo Pump, Located in West Central FL, using the BBB method.

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