Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Indoor green tinged pool

  1. Back To Top    #1

    Indoor green tinged pool

    Hello,
    An indoor pool that has NO exposure to sunlight was drained, and refilled, but, the water has a greenish tinge to it. The pool's liner is white. Upon filling up, the first thing added to the pool was chlorine, and large amounts.
    THe water was not treated with metal out or ever tested for metals. THe pump and filter have been running for 11 hours and only a slight change in tint. THe water is also a bit hazy.
    Levels are as follows:
    FC: 25
    TC: 25
    pH: 7.7
    Alkalinity: 225
    CH: 60(vinyl liner and the pool is made of alminum)
    Water temp: 65 degrees

    Could this be iron in the water and the greenish tinge is a result of adding a large amount of chlorine?
    Or could this be copper from very old pipes?

    Thank you,
    126,000 indoor recreational pool with a retractable roof.
    "The meeting of two personalities is like the mixture of two chemicals; if a reaction occurs, both are transformed.

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

    Re: Indoor green tinged pool

    That does sound rather like metals in the water. Water that turns a transparent green when you add chlorine is a sure sign of metals. The hazy water does complicated the diagnosis, since that wouldn't have anything to do with metals.
    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

    Re: Indoor green tinged pool

    Yes, the water is not a clear green, but a hazy green...but i can see the bottom of the dep end (4ft 10in). I'm going to let the pump and filter run all night and hope it works some magic. If it is in fact metals. Would it be best for me to nuetralize the FC to 0, and add a sequestering agent?
    126,000 indoor recreational pool with a retractable roof.
    "The meeting of two personalities is like the mixture of two chemicals; if a reaction occurs, both are transformed.

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Indoor green tinged pool

    Right, if metals lower PH and add sequestrant. The haziness means that there are some other possibilities, but most of the obvious one seem rather unlikely given other things you have said. Algae is rare in an indoor pool and it's color usually goes away or at least fades when you add lots of chlorine.
    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
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Indoor green tinged pool

    I'm not being a wiseguy, really. But what color is the ceiling? I was disgusted by a milky green pool about a year ago in a motel. I even posted about it.


    I contacted the health dept. They closed it. But I discovered after I took that picture that some genius had painted the celing sort of olive green, which, coupled with the cloudy (people's feet disappeared in 3' ) water made it look even worse than it was.
    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!

  6. Back To Top    #6
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Indoor green tinged pool

    I agree with everyone else, most likely metals, perhaps corroded pipes from while the pool was drained. I had that happen many years ago with a pool heater, one day the pool suddenly changed to a bright green, and just got worse when Chlorine was added.

    Ike

    p.s. I can tell you from experience algae blooms can happen with indoor pools, but it is rare, and there is usually ample warning before they get bad.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  7. Back To Top    #7

    Re: Indoor green tinged pool

    THe ceiling of the pool area is white. The pool has cleared up a little bit today. Its 36,000 gallons, so, my guess maybe a day more or so. The green tint has lightened a bit as well.

    Thank you, everyone.
    126,000 indoor recreational pool with a retractable roof.
    "The meeting of two personalities is like the mixture of two chemicals; if a reaction occurs, both are transformed.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •