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Thread: Greenish staining

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    Join Date
    May 2014
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    Greenish staining

    Hi all,

    After having read a lot of posts about staining I decided to post my own pictures because I'm not sure which problem I have.
    The staining is greenish and doesn't come off when I brush. It's not scaling - the surface feels smooth.
    I opened the pool a week or so ago and got rid of the green water - the filters are doing it's job at clearing the water and the FC is good and steady. I'm putting a lot of shock in which is normal for me early in the season. My SWG is not running yet and I have not added salt.
    Before I venture in to an acid bath and brush the .... out of my pool I wanted to ask you smart people
    My pool is 5 years old.
    FC - 2
    CC - 1.6
    pH - 7.5
    TA - 78 (little low I know)
    CH - 360
    CYA - 55 (a little low also)

    Thank you!

    IMG_1531.jpgIMG_1530.jpg
    32K Gal, White plaster, AquaPure SWG, 4 x cartridge filters, LXi propane heater aka 'The cointhief' , Stealth 1,5HP pump, Polaris Robot aka 'Bob'

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    Mod Squad jblizzle's Avatar
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    Re: Greenish staining

    Welcome to TFP!!!

    What test kit are you using? Your high CC points to a need to follow the SLAM Process.
    What "shock" product are you using? Be careful it is not adding too much CYA.

    Your TA is fine, leave it alone.

    You need to ID the stain. Try putting a trichlor tablet on it and see if it lightens in a few minutes ... that would be organic stains. Or try putting a vitamin C tablet on it and let is dissolve for awhile and see if that lightens the stain ... that would be metal staining.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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  3. Back To Top    #3

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    Re: Greenish staining

    Thank you.

    My test results are from the local pool store. But I also use test strips and my little Pentair pH and CL kit (twice a day) My TF100 XL test kit is on it's way in the mail.
    I have been using different shock products from Bioguard and Leslie's ... and latest Kmart - Clorox household bleach. But I have been careful not to use shock with CYA.

    I will try to put a trichlor tablet on it a see what happens and after that a vitamin c.

    Thank you!
    Jakob
    32K Gal, White plaster, AquaPure SWG, 4 x cartridge filters, LXi propane heater aka 'The cointhief' , Stealth 1,5HP pump, Polaris Robot aka 'Bob'

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: Greenish staining

    I would not use any of the cal-hypo powder either since your CH is getting up there too. Stick with the liquid
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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  5. Back To Top    #5

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    Re: Greenish staining

    Hi again,

    Just a quick update.

    I don't see any effect from the trichlor tablet or the vitamin C - I will leave them for a bit longer.

    I had the water tested again at the local pool store and I was surprised to see I had lost a lot of FC. The good thing is that the CC level showed low as well.

    FC - 0.1
    CC - 0.1
    pH - 7.5
    TA - 94
    CH - 362
    CYA - 55

    I just added 3gal of liquid chlorine (Sodium Hypochlorite) and I added salt so I can get the SWG going.

    Thanks,
    Jakob
    32K Gal, White plaster, AquaPure SWG, 4 x cartridge filters, LXi propane heater aka 'The cointhief' , Stealth 1,5HP pump, Polaris Robot aka 'Bob'

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    Mod Squad jblizzle's Avatar
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    Re: Greenish staining

    FC is consumed by the sun every day ... and I would not believe their test results anyway ... keep watching that mail box
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7

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    Re: Greenish staining

    Hi again,

    I left the trichlor tablet in the pool over night and the area around it cleared up. So it took at least 10 hours to show - regardless I guess I can assume by problem is organic.
    32K Gal, White plaster, AquaPure SWG, 4 x cartridge filters, LXi propane heater aka 'The cointhief' , Stealth 1,5HP pump, Polaris Robot aka 'Bob'

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    Mod Squad kimkats's Avatar
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    Re: Greenish staining

    You need to slam the pool. Look at my siggy below to find the link to the page (Shocking the pool).

    That will save you a lot of work!
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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