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Thread: Just opened, here are my numbers

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    Just opened, here are my numbers

    Hiya folks... good to be back here. We just uncovered the pool and topped off the water yesterday. This is my first opening since switching off Baquacil last year. It looks pretty good. Using the leaf net over the winter cover really seemed to make removing the cover easier. No brown sludge dumped into the pool from the cover and we did not even get our feet wet! That was worthwhile, IMO.

    Water a little cloudy but not green. Just green on the skimmer basket and in the pump filter basket. I added chlorine this morning to get it to 15ppm, then let it circulate a few hours before testing. Here are the results:

    FC: 7
    CC: 1
    TC: 8
    pH: 7.5
    TA: 90
    CH: 170
    CYA: <20
    Salt: 2150
    Temp 68.4

    I presume I should continue shocking until FC holds and CC is zero, then increase the CYA. Any suggestions on a goal for CYA? I have the Intex SWG and I think I kept CYA around 40 last year.

    I brushed yesterday and was planning to vacuum and then backwash later on when then sun is behind the trees. I need to add a bag of salt to boost that. It was giving me the low salt warning before we closed last summer so I knew it would need salt. Everything else seems to be good... any suggestions?

    Looks like I will be coaching my sister on a Baquacil conversion soon. Of course I will send her here, too.

    18' round Sharkline Matrix AGP / 8600 Gal. / sand filter / Aqua Trol SWG
    Pool owner since 2001. Thanks to TFP for helping me convert off Baquacil after six years!

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Move to the head of the class!! You've got this figured out.

    I can add little to what you already know and are planning to do.

    Over the past couple of years the recommended dosage for CYA has crept up a little. In yur case with the SWG, 60-80ppm seems to be the range.

    Keep that chlorine in there in the evening just like your planning. Sounds like your pool will be sparkling in a couple of days.

    Nice workl!
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    I would go ahead and add perhaps half of the CYA right away. No need to lose more chlorine to sunlight than absolutely required. Besides it sounds like you have the algae beaten already.
    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

  4. Back To Top    #4
    Hooray! Thank you both for the suggestions.

    18' round Sharkline Matrix AGP / 8600 Gal. / sand filter / Aqua Trol SWG
    Pool owner since 2001. Thanks to TFP for helping me convert off Baquacil after six years!

  5. Back To Top    #5
    Butterfly's Avatar
    Join Date
    May 2007
    South Carolina
    Hey MeSue,

    Welcome back
    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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