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Thread: Blue Streaks After Shocking!

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    Blue Streaks After Shocking!

    Shocked Pool Last night and this morning there are blue streaks on bottom that brush will not remove!

    Any ideas?

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    mikemass's Avatar
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    Re: Blue Streaks After Shocking!

    Vinyl, plaster or other?
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
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    Re: Blue Streaks After Shocking!

    What type of "shock" did you use? It might have had metals in it. Here we like to use Pool School - SLAM - Shock Level And Maintain

    But first you need to read
    Pool School - ABCs of Pool Water Chemistry

    If possible, a picture can be extra helpful.
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    Re: Blue Streaks After Shocking!

    I used liquid bleach, and the pool is plaster.

    I used a decent amount of algaecide a few months ago but why would the staining just show up?

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    Re: Blue Streaks After Shocking!

    Welcome to the Forum!

    Please add your signature and if possible add some pictures of the areas. Please provide us a detailed description of the events that led up to the streaks and answers to some of the previous questions. Thanks!
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    Re: Blue Streaks After Shocking!

    Quote Originally Posted by Knighaw View Post
    I used liquid bleach, and the pool is plaster.

    I used a decent amount of algaecide a few months ago but why would the staining just show up?
    Because some algaecide has copper in it. In a high chlorine environment, the copper will turn blueish-green (think the Statue of Liberty or an old penny).

    There's a good chance this blue streak is oxidized copper.
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

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    Re: Blue Streaks After Shocking!

    Thanks Mike-

    What do you recommend to test the copper level and remove it?

    - - - Updated - - -

    Sorry the pool has been a bit cloudy and even shocking isnt getting rid of it 100%.

    Could this be from to copper as well?

    IMG_0155.jpg

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    Re: Blue Streaks After Shocking!

    Honestly. It's a bit controversial topic around here and I don't feel like getting attacked on an open forum. There's a member, SwampWoman (I think that's the exact username) on here who is very knowledgeable on metal removal. Her opinion is well respected. If I ever suspected a metal problem in my pool, I would def reach out to her.

    First is to actually determine Copper is the culprit. Do you know the exact brand algaecide you used? So we can check the ingredients. Then I would get a water sample to get tested fro any metals. Not tested by a pool store, but by a real water treatment place. Like a company that sells and services water softeners.
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

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    Re: Blue Streaks After Shocking!

    Thanks, I will do so.

    Can copper cause water cloudiness as well?

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    Re: Blue Streaks After Shocking!

    No, it won't cause cloudiness. Generally organics, such as algae cause it to be cloudy. Do you have one of the recommended test kits to give us a full set of test readings?
    26' X 52" Intex Ultra Frame. Intex Sand Filter
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    Re: Blue Streaks After Shocking!

    Yes, I will go take readings now!

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    Re: Blue Streaks After Shocking!

    Fc: 10
    ph: 7.6
    ta: 200
    cya: 60
    ch: 60

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    Re: Blue Streaks After Shocking!

    Please add your pool info to your signature as shown here, Pool School - Read This Before You Post.

    You have a lot going on in your pool and the information needs to be visible on each post so we don't have to dig through the thread to find it.
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    Re: Blue Streaks After Shocking!

    Updated
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    Re: Blue Streaks After Shocking!

    Any easy way to tell if it is metal is to rub a vitamin C tablet on it for a few minutes. That will lighten the area you rub if the stain is metal.
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    Re: Blue Streaks After Shocking!

    I think OP did the Vitamin C test already. From what I understand it didn't lift immediately. Turned real dark at first and then after some time, the stain lifted. Every time I do a C test, I get same results. Freaks me out that initially it looks worse before it gets better.
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

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    Texas Splash's Avatar
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    Re: Blue Streaks After Shocking!

    A stain turning darker after vitamin C treatment certainly resembles copper. Some dry acid in its place might work.
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    Re: Blue Streaks After Shocking!

    pool copper.jpg

    I have ordered some copper test strips to see what kind of levels I have!
    19K gal, IG Plaster, 1 1/2 HP Hayward pump, Hayward S200 Sand Filter, Creepy Crawly, TF100 Test Kit

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    Re: Blue Streaks After Shocking!

    Texas Splash- Any recommendations on what to use?

    Have read Jacks Magic- The Blue stuff is good but pricey
    19K gal, IG Plaster, 1 1/2 HP Hayward pump, Hayward S200 Sand Filter, Creepy Crawly, TF100 Test Kit

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    Re: Blue Streaks After Shocking!

    Jack’s Magic Stain ID Kit for about $15 is the only one I'm familiar with. But if you do in-fact confirm it's copper, you may have heard the metal routine before but I'll toss a few reminders your way:
    - Removing/exchanging the metal-filled water is always idea (if possible) to avoid continued sequestrant use later; or at least maximum water change to minimize the effects
    - Probably best to allow pH and FC to ride a little lower which might help reduce the precipitating effects between chlorine and metal; no doubt your last FC increase prompted this reaction. Hopefully you are algae-free, otherwise you'll be starting all over. So definitely make sure your water is algae-free before trying to manipulate the metal in the water.
    - If you keep the water (or most of it) and continue with chemical management, ProTeam's Metal Magic and Jack's Magic the Pink Stuff (regular) and the Blue Stuff (fresh plaster) are some of the top sequestrants. You're right, they are not cheap and will continue as long as you have that metal-filled water (if confirmed). You can also find other brands with similar products, some of which are noticeably less expensive. Sequestrants based on HEDP, phosphonic acid, or phosphonic acid derivatives are the most effective.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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