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Thread: Just Opened - Test Results

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    Just Opened - Test Results

    I just received my TF100 kit today and used it right away. Here are my results.

    TC - 0
    PH - 7.8
    TA - 210
    CYA - I used the entire drop bottle in the sight glass and still saw the black dot fine so I would say 0

    I still need to get it scrubbed up better. When I removed the cover there was some algae on the fiberglass steps. Water is fairly clear.

    Pool was built last summer and this is my first year opening it. What should I do first?

    Should I raise CYA before shocking? I need to get my SWG going too but figured I need to shock first.

    Any other advice would be great.
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
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    JasonLion's Avatar
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    Re: Just Opened - Test Results

    I suggest starting by lowering PH to 7.2. That will also start lowering TA, which is rather high.

    Then you want to start shocking and start adding CYA at more or less the same time. Shocking without CYA isn't very effective And CYA can sometimes break down if you add it without adding any chlorine.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Just Opened - Test Results

    What is the best way to raise CYA? Liquid or solid?
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
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    Re: Just Opened - Test Results

    Quote Originally Posted by briansturgeon
    What is the best way to raise CYA? Liquid or solid?
    We generally recommend the solid/powder/granular form added via sock method.

    The liquid is faster, but pricy.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Re: Just Opened - Test Results

    The pool calculator said I would need 234 ounces by weight of CYA. That seems like a ton to me since that is over 14 lbs. Does that sound right? Is it possible to have a CYA of 0. I know I never added any last year. I just want to make sure I'm not messing something up because I know the only way to lower CYA is to drain water and I don't want to get to that. Thanks.
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    Re: Just Opened - Test Results

    I suggest you add only about 30ppm CYA and start shocking at the same time.

    Adding all needed CYA at this time only costs more $ for the shock process as a higher CYA level has a higher shock level, which requires more chlorine ($).

    When you are done shocking (see red lines in my sig) you can then raise the CYA to about 70ish for the SWG. Don't use the SWG for the shock process, use liquid chlorine/bleach.

    And yes, about 234oz of CYA will add about 63ppm CYA to a 28K gallon pool.

    Are you familiar with the "How to Shock Your Pool" article in Pool School?

    Post back with any questions. Someone will be around to help
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Just Opened - Test Results

    I have read the shock process but I'm still trying to figure out how much bleach to use. So how much bleach should I start out with? I am having trouble figuring that out after using the calculator. Since my CYA is currently 0 even though I will target 30 at first should I base my initial chlorine dose on CYA 30 or 0? Don't want to mess anything up.
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    Re: Just Opened - Test Results

    With zero CYA, shock level is about 10.

    After the CYA is dissolved from the sock, assume it is in the pool and adjust the shock level accordingly.

    CYA can take up to a week before it shows up on a test, so don't waste your reagents.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Just Opened - Test Results

    does 581 ounces of bleach sound about right to you then? Thanks for all the help.
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    Re: Just Opened - Test Results

    Quote Originally Posted by briansturgeon
    does 581 ounces of bleach sound about right to you then? Thanks for all the help.
    yep, per poolcalculator.com that would take your FC from zero to 10ppm.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Just Opened - Test Results

    Ok. Headed to Wally World now.
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    Re: Just Opened - Test Results

    So sorry but have one more question I forgot to ask. Should I unplug my IC40 SWG while shocking? Will it hurt it or anything?
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    Question on Shocking and SWG

    Ok. Here are the readings from today. I have a couple of questions too.

    1. My SWG is currently on. Should I turn it off in order to get my FC back down to target level?
    2. I did the overnight test and lost 0 FC and there are still no CC. Does this mean I'm done with shocking?
    3. How do I lower my TA. I added acid to get my PH in line now what for TA?
    4. Should I increase calcium a little bit?

    FC - 15
    PH - 7.2
    TA - 180
    CH - 190
    CYA - Added 8 lbs yesterday
    CC - 0
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

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    JasonLion's Avatar
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    Re: Just Opened - Test Results

    1) You can if you want, but it is simpler to just leave things alone.
    2) Yes.
    3) See the article on lowering TA in Pool School.
    4) There is no point as you have a vinyl liner pool, which doesn't need added calcium.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Just Opened - Test Results

    Will my FC come down on its own then so we can swim soon?
    18 x 36 IG Vinyl Liner 28K Gallons
    Pentair Intelliflo VS+SVRS, Pentair CC + 420 Cartridge Filter, Easytouch CP with IC40 SWG
    2" Suction and Return Lines - 2 skimmers, 6 returns
    Dolphin Diagnostic Advantage Robot

  16. Back To Top    #16
    JasonLion's Avatar
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    Re: Just Opened - Test Results

    Your CYA level can't be all that high yet, I would expect several hours of sunlight to bring the FC level down quickly.
    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

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