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Thread: Question on opening chemicals

  1. Back To Top    #1

    Join Date
    Apr 2009
    Location
    Lancaster, pa
    Posts
    71

    Question on opening chemicals

    It's been awhile since I was on here and asked a question (I guess that is a good thing!!), but I do have a question now...
    I am opening my 24' AGP and just need a refresher on what order I need to get the chemicals in line after I get the water circulating?
    I am on my 2nd year of using the AquaTrol Salt Water Generator (which I really like!!!)..so as far as chlorine (I will be using liquid to get started), Ph, CYA, TA, and salt..what should I do first, second, and so on?? My water is clear and will be starting my pump today.
    Thanks for any help!!

    Curt
    24' AGP (13,600 gal)
    Sand Filter with 1.5hp pump
    Lancaster, PA

  2. Back To Top    #2
    Richard320's Avatar
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    Jan 2010
    Location
    San Dimas, CA (LA County)
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    18,768

    Re: Question on opening chemicals

    Depends if the water's green or not.. and what the readings are when you start. You might need a partial drain. Let's be optimists and say the water is clear and CH and CYA aren't astronomical.

    pH first.
    CYA second- how much depends on whether it needs shocking or not
    Bleach third

    Low CH isn't a problem in a vinyl pool, but high CH can be. If it was way high, you've already drained some.
    TA can wait until the other stuff is stable.

    Then salt it as needed and fire off the SWG
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: Question on opening chemicals

    The first step is to get the pump running, after the pump has been running for an hour test the water, once you have test results it will be more obvious what is most important to work on first.
    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

    Join Date
    Apr 2009
    Location
    Lancaster, pa
    Posts
    71

    Re: Question on opening chemicals

    OK...the water was very clear and I got the pump running yesterday and took my first readings:

    CL..1.5
    CC..0
    Ph..7.3
    TA..80
    CYA..50
    Salt..@1900

    I added some liquid CL to bring it up the corresponding CYA level (6), and am going to add some Borax to get the Ph in range, then add some CYA to get it to about 80, then add some salt to desired level for the AquTrol, and I should be good to go!! I guess the TA is pretty close to being in range, so I will adjust that as necessary!
    This was a bit easier than I thought, since my readings were not too bad to begin with!!
    Now to get the temp up!!..it's a chilly 72!! (didn't keep my son from jumping in!!)
    Thanks for your responses!!

    Curt
    24' AGP (13,600 gal)
    Sand Filter with 1.5hp pump
    Lancaster, PA

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