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Thread: Ascorbic Acid treatment, scared because it looks TOO good...

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    Peachtree City, GA
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    5

    Ascorbic Acid treatment, scared because it looks TOO good...

    First, I'd like to thank you ALL for helping me take control of my pool. I am a first-time pool owner, and have struggled at the hands of pool stores for several years now. BUT NO MORE, thanks to TFP!

    I'd love to hear your opinion on my current "situation":
    1. My pool was closed by a "bad" pool guy, and it was a swamp when it was opened in May.
    2. Ran back and forth to the pool store, and spent $250 in a week to address the algae.
    3. Bought into the copper algaecide solution they were selling.... and more "shock".
    4. Got rid of the algae... or so I thought...but then I had bad staining in the pool... water looked brownish green, although crystal clear and sparkling.
    5. Bought into the "get rid of the stain" stuff the pool store was selling, and the "now get rid of the metal stuff", and the "also keep this little packet in your skimmer" stuff, and spent $150 more.
    6. I did the treatments they recommended to the letter, stain "sort of lifted", it was very spotty even though I used every bit of the $50 jar. Did the metal sequestrant treatment as directed....
    7. You might have guessed.... ALGAE AGAIN. This was when I decided the pool guys aren't smarter than I am... and I found TFP.

    I took care of my algae problem thanks to TFP, and so far TFP has not steered me wrong. My OCLT tests were beautiful, so I am pretty confident my algae is under control. And for a few weeks, my pool was very nice. But, still had stains. So, I mustered the nerve to start all over again and do the ascorbic acid treatment because I am clearly a glutton for punishment. So... I did several weeks of reading up about ascorbic acid treatments, bought one of those fancy testing kits, and found out where I went wrong... I should have used a polyquat 60 algaecide to keep the algae at bay before lowering my chlorine level to 0.

    So. It is the End of Day 3. BTW, I poured FIVE POUNDS OF AA into my pool, because after 3 doses at 1 lb each, and two hours of waiting, the stains were still very present. After the requisite waiting period, and my "happy dance" at seeing my azure blue pool, the first few water tests I did the following morning showed 0 FC (not surprising), but by the 4th test, I had an FC of 5.5, and a CC of 1. The chlorine numbers have been up and down since that test, but for the last 5 tests, FC has been holding between 2.0 and 3.0, with a CC of .5 - 1. The pool is SPARKLING blue, not a stain in sight and my latest complete test results are below. :

    ph: 6.8
    FC: 6
    CC: .5
    TA: 85
    CYA: @60 - 65

    I MUST be doing something wrong. It couldn't possibly have been this "easy". I fully expect that tomorrow morning I will wake up and the pool will be purple. What am I missing? I have, of course, tested something like 12 times in the past 48 hours, and made 12 "slow" additions of chlorine. I'm not sure if I've gone slowly enough, but I didn't see any staining reappear, so I kept increasing by 16 oz at a time... drizzled slowly into the deep end. I am aiming for a FC number of 8 since my CYA is fairly well elevated. After doing the test above, I added 72 more ozs of bleach... and will retest in the AM to see what's up.

    Is it bad to have increased my FC so quickly? It was hard for me to judge what "slowly" means and I'm beginning to panic! Sorry for the obnoxiously long post!!

    Thanks for any guidance!
    slk
    16'x36', 25,000 gallons, IGP,Vinyl liner, Sand filter, iRobot Verro cleaning robot

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    Welcome to TFP!

    To be completely safe it is best to only raise the FC level by 2 per day. That may mean adding a lot more chlorine than that, as the chlorine will get used up along the way. The reason to raise FC slowly is in case you haven't added enough sequestrant. By going up slowly you should have time to catch staining the moment it starts to happen, add sequestrant and clear it up again. Of course if you already have the sequestrant dosage right that isn't strictly necessary.

    By the by, it is common for the water to get cloudy at about this point. If that does happen, don't worry about it. It will clear up in a couple of days.
    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

  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    Peachtree City, GA
    Posts
    5

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    You sure work fast! Thanks so much for all you do, Jason! I certainly hope I have added enough Pink Stuff, since the next batch isn't scheduled to arrive until Thursday! And, thanks for letting me down gently about the cloudiness. I would have been completely deflated tomorrow if I didn't know it is "normal".

    I am anxious to get back in the pool, since it was 95 degrees today (they don't call it "HotLanta" for nuthin'). At what point should it be safe for me to take the plunge?
    16'x36', 25,000 gallons, IGP,Vinyl liner, Sand filter, iRobot Verro cleaning robot

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

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    You can swim as soon as the PH is up to 7.2 and the FC level is at the minimum for your CYA level (or higher).
    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

  5. Back To Top    #5

    Join Date
    Oct 2010
    Location
    michigan
    Posts
    283

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    just did the exact same thing you did, pool looks awesome, little cloudy water is clearing up nicely
    15,000 gallon inground fiberglass pool with spa. 350lb Sand filter, 1.5 hp pump, and heater

  6. Back To Top    #6

    Join Date
    Jun 2012
    Location
    Peachtree City, GA
    Posts
    5

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    Good deal! How many days has your water been slightly cloudy?

    I am still (luckily) looking at crystal clear water... waitiing... I do feel like I'm babysitting a newborn, what with the constant care and feeding for the last several days... but, I'm hoping in time it will get less taxing.

    Went swimming today, had great numbers all day:
    ph 7.2
    FC was between 5 and 7.5, full sun so I'm still adding 72 oz of bleach at a time... today, was down to 4 cycles of test/chlorinate...down from yesterday's 6, so I guess that's progress.
    CC is still at .5.
    16'x36', 25,000 gallons, IGP,Vinyl liner, Sand filter, iRobot Verro cleaning robot

  7. Back To Top    #7
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    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

  8. Back To Top    #8

    Join Date
    Jun 2012
    Location
    Peachtree City, GA
    Posts
    5

    Re: Ascorbic Acid treatment, scared because it looks TOO goo

    YAY! Thanks for your guidance, Jason!!
    16'x36', 25,000 gallons, IGP,Vinyl liner, Sand filter, iRobot Verro cleaning robot

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