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Thread: just had pool opened.....now what?

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    just had pool opened.....now what?

    Pool service came by today and opened pool. Didn't look too bad.

    He said he put in 3.5 to 4 pounds of dichlor, and 1 quart of algaecide.



    I just tested, and FC is 36.

    Does algaecide add to FC?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    JasonLion's Avatar
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    Re: just had pool opened.....now what?

    No, algaecide does not add to the FC level. 4 lbs of dichlor in 12,000 gallons would raise FC by 22 (and CYA by 20).
    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 had pool opened.....now what?

    Just tested again:

    FC 36

    TA 50

    CH 130


    Based on the FC level, and the assumption that there would be no FC at all when we opened, it looks like he put in more like 6.25 pounds of dichlor.

    Is this a valid assumption?


    Based on the TA level, I need to add about 3.5 pounds of baking soda to bring TA from 50 to 70?

    There's no point in testing the PH right now, because the FC is so high?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Richard320's Avatar
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    Re: just had pool opened.....now what?

    I wonder if the algaecide was really algaecide and not some sort of "yellow-out" or "green-to-clean" or miracle-snake-oil algae killer? I suppose you'll find out for sure when you test the CYA level. Hopefully, it's not astronomical. Be a shame to pay someone to open it up and then have to pay to replace a bunch of water.

    And you are correct, no point in testing pH. You did use the right factor for the drops, I hope? .5 for a 10 ml sample, .2 for 25 ml. It's easy to make that mistake, since the TA test is 25 ml.
    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.
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    Re: just had pool opened.....now what?

    I used a 5 ml sample, so each drop is 1 FC
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Re: just had pool opened.....now what?

    Personally, I'd fire the pool boy and take over pool maintenance myself. It's not hard at all. By reading Pool School and owning your own test kit, all you need is to make time for the pool which, 5 minutes a day could cover. Good Luck with it. Keep asking questions!
    I'd bet you my bikini you'll never get TFP water from a pool store!

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    Re: just had pool opened.....now what?

    I do the pool maintenance. I only use the pool service for opening and closing. I may attempt closing by myself this year, with the help of a neighbor.


    So, with a TA of 50, I need to raise that up to at least 70?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Re: just had pool opened.....now what?

    I used a 5 ml sample, so each drop is 1 FC
    To perform what test?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: just had pool opened.....now what?

    I used 5 ml sample to perform the FC test.
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Re: just had pool opened.....now what?

    So, with a TA of 50, I need to raise that up to at least 70?
    There is an article in Pool School (Recommended Levels) that will tell you where to maintain your TA (and other parameters).
    Dave S.
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    Re: just had pool opened.....now what?

    so I need to add about 3.5 pounds of baking soda....

    do I just sprinkle all around the pool?


    another question...

    I don't receive email notification of replies to my posts, even though I checked that off in the settings. How do I fix this?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Re: just had pool opened.....now what?

    Quote Originally Posted by GuinnessPhish View Post
    so I need to add about 3.5 pounds of baking soda....

    do I just sprinkle all around the pool?


    another question...

    I don't receive email notification of replies to my posts, even though I checked that off in the settings. How do I fix this?
    Straight from the article on Recommended Pool Chemicals: "Baking soda can be added by spreading it across the surface of the deep end of the pool."

    Can't help with the forum issue. I checked mine so I don't get emails every time.
    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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    Re: just had pool opened.....now what?

    The issue here may be the assumption that FC was 0. Your CYA may now be too high as well. This is why we always say you need to test before making adjustments.
    Jason, TFP Moderator
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    Re: just had pool opened.....now what?

    The reason I assume FC was zero was because the pool did have some algae when opened.

    The pool was drained about a third at closing, but I did have to siphon water off a couple of times because of all the snow and rain we got this winter.
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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    Re: just had pool opened.....now what?

    Check to see if the notification of new posts message is going into your SPAM folder.
    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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    Re: just had pool opened.....now what?

    Quote Originally Posted by JasonLion View Post
    Check to see if the notification of new posts message is going into your SPAM folder.
    nope. nothing there either.


    weird.


    Anyway...pool water is crystal clear! I raised TA up to 70. pH 7.2, CC .5, FC 7.5...

    CYA is assumed to be around 32...I'll test on Saturday to confirm.

    The only real question I have at the moment.....my CH is 130.

    Should I raise that, or can I just bring my pH up to 7.5, so the CSI is above -.6?
    8,000 gallon, in ground, fiberglass pool with a cartridge filter.

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