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Thread: Fresh fill questons

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    SCon36's Avatar
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    Fresh fill questons

    I recently had to empty my pool for some maintenance and now have the pool refilled and circulating. After adding some bleach, here are my numbers.

    FC- 3.6
    CC- 0
    pH- 8.0
    total alk- 200
    cya- 0
    CH- don't remember the number but was well within range

    I am now adding cya using the sock method. Caution, always check that old sock for holes before filling. Now I'm using the double sock method.

    With heavy rain forecasted in the Ohio valley tomorrow and the addition of cya, should I leave the pH and alkalinity alone or go ahead and make adjustments?
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    JasonLion's Avatar
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    Re: Fresh fill questons

    Lower the PH to 7.2, and add 2 ppm of chlorine this evening. Then tomorrow start targeting an FC level appropriate for the CYA level you are targeting.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Mod Squad pooldv's Avatar
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    Re: Fresh fill questons

    LOL! You get credit for inventing the double sock method!!!
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    Patrick_B's Avatar
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    Re: Fresh fill questons

    Welcome to a new pool season Scon

    I like the double sock method.

    With your TA, and pH, I would like to see your CH number. Better to be safe than sorry on that one...
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    Divin Dave's Avatar
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    Re: Fresh fill questons

    CH is fine.. Vinyl pool really dont care what it is, as long as it isnt extravagantly high.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
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    Re: Fresh fill questons

    The vinyl wasn't my concern.
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    SCon36's Avatar
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    Re: Fresh fill questons

    CH was 200. After I looked back at the acceptable range, I remembered my number.
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    Re: Fresh fill questons

    Awesome, no worries then. It was the unknown I was curious about. Thank you.
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    SCon36's Avatar
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    Re: Fresh fill questons

    Round 2 of the double sock CYA addition. I'm playing it conservative after having high CYA issues last summer.
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    SCon36's Avatar
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    Re: Fresh fill questons

    Here are my latest numbers. Still working on TA as you can see.

    FC- 6.5
    CC- 0
    pH- 7.4
    total alk- 170
    CH- 200

    I have both return jets aimed toward the top of the water and my slide going. Aeration is in progress. Anything else I should do for TA?
    cya- 35
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    Patrick_B's Avatar
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    Re: Fresh fill questons

    That's fine, just keep plowing. You might want to bump your Cya to 40-50, but just keep at it.
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    Mod Squad pooldv's Avatar
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    Re: Fresh fill questons

    Nope that is the best way to lower TA. It works, I've had to do it a few times.
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    Re: Fresh fill questons

    Ok, I have added a lot of acid to this pool. Over the course of the last week or so, I've added two gallons of 31.45% muriatic acid and then some ph down dry acid. The ph will drop to 7.6 or so, but always go right back to 8 within the next day. TA stays between 170-200.

    My FC is 6 and CYA is still about 35. I've also been working to bring it up a little.
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    Re: Fresh fill questons

    As your TA lowers your PH will stabilize. Just keep bringing the TA down with MA. This will lower PH too, but you can aerate PH back up to drop TA again.
    Lisa
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    Isaac-1's Avatar
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    Re: Fresh fill questons

    Remember the CYA is acidic so as it dissolves pH will go down some.
    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
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    SCon36's Avatar
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    Re: Fresh fill questons

    Things are finally starting to fall in line. My pH is 7.6 and TA is 130. The pH will rise a little over a few days, but TA has been holding steady at 130. Added a little more acid just a little bit ago. Come to find out, my local small town hardware store has the best price on muriatic acid. It's the good stuff with a good date. Can't beat that. And, they're just a few minutes down the road. WIN!
    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    SCon36's Avatar
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    Re: Fresh fill questons



    Here's a picture. I've been pretty happy with the way it looks since I pulled off the cover.


    SCon36

    24,000 Gallon IG vinyl pool (16x36x8) with Hayward S200 sand filter and Hayward pump and heat pump. Built August 2011. I use a Taylor K-2005 test kit with a K-1515 add on.
    https://www.youtube.com/watch?v=bIgL...0MyAw&index=29

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    Re: Fresh fill questons

    Nice job, beautiful pool!

    20x40' inground concrete pool
    approx 30,000 gallons
    1.5 hp hayward pump
    refinished spring 2015
    50 year old, newly remodeled in-ground 20x40' pool (approx 30,000 gallons)
    1.5 hp Hayward pump and 20 gpm/ft2 sand filter (62 gpm filtration&backwash), 50psi max working pressure

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