Become a TFP Supporter Welcome to our new server and new forum software. Pool School
Results 1 to 7 of 7

Thread: Stain from Chlorine Puck

  1. #1
    Senior Member
    Join Date
    Jul 2007
    Location
    Alamo, CA
    Posts
    185

    Stain from Chlorine Puck

    When we first moved in to our house four years ago, I started using 3" chlorine tablets in a floater. While filling the floater, I accidentally dropped one of the pucks in the deep end. I figured it wouldn't hurt anything, but I fished it out a few days later after noticing it discolored the white plaster. Since then, there has been a yellowish stain about 18" in diameter down there and it has a 3" white circle in the center from where the puck sat. Is there anything that will remove that stain besides resurfacing?

    Similarly, there are some dark yellow stains on the top step that I think may have been caused by the floater hovering over it in the 5" deep water. How might I clear that up?

    I'm so glad I converted over to SWCG!
    blubluenoiseise

    My pool: 14,750 gallons in-ground plaster
    FAFCO Solar panels (seven 4' x 12') with a Goldline automatic controller
    1/2 HP WhisperFlo filter pump, Kreepy Krauly cleaner, Cartridge Filter
    Aquarite SWG, Satisfied user of the TF-100 Test Kit

  2. #2
    Senior Member
    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,162
    Blue, sounds to me like there was some metal in the water which oxidized. The cure for metal stains is ascorbic acid, you can test this by placing a vitamin C (pure) tablet on the stain and seeing if it gets removed. M-bar can tell you more, as can others - this is fairly inexpensive and not too hard to do.

    If it is a metal stain, we'll tell you how to deal with it.
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  3. #3
    Senior Member
    Join Date
    Jul 2007
    Location
    Alamo, CA
    Posts
    185
    Interesting. That should be easy for me to test as we have a big jar of those "pucker pills" and the pool is still very nice and warm.

    How long does the tablet need to be in contact with the stain to show whether it's working or not?
    blubluenoiseise

    My pool: 14,750 gallons in-ground plaster
    FAFCO Solar panels (seven 4' x 12') with a Goldline automatic controller
    1/2 HP WhisperFlo filter pump, Kreepy Krauly cleaner, Cartridge Filter
    Aquarite SWG, Satisfied user of the TF-100 Test Kit

  4. #4
    Senior Member
    Join Date
    Apr 2007
    Location
    Arizona
    Posts
    926
    There are some marks on the bottom of my pool which I'm told are from pucks. They were there when I bought the place and 7 years later and an acid wash and they are still there. No metals in my water.
    Buggs

    14,000 gallon, in ground, plaster, free form, play pool.
    Sta-Rite Max-E-Glass with a 1.5 hp Emerson motor
    WaterCo Micron High Rate sand filter S750 490 lb, 4883 sq ft - using ZeoBest
    In floor Polaris cleaning system
    Blue Diamond robot for those after storm days when I can't wait overnight for the in floor to clean it.

  5. #5
    Member
    Join Date
    May 2007
    Location
    Spring Hill, Florida
    Posts
    40
    Buggs, there may have been metals in the water seven years ago. I'd recommend treating the stains as though they were from metal. It won't hurt, and it may work.

  6. #6
    Senior Member mbar's Avatar
    Join Date
    Apr 2007
    Location
    Ashland PA
    Posts
    257
    The vitamin C tablets should work very quickly. If it does remove the stain, you can crush up a few tablets and put them in a sock, and rub the stain. After getting rid of the stain, you can put some sequestering agent in the water - something that says "metal remover". You can also use ph down in a sock to rub on the stain. Let me know if these don't work, and we cn try other things.
    16x33 fiberglass pool sand filter

  7. #7
    Senior Member
    Join Date
    Jul 2007
    Location
    Alamo, CA
    Posts
    185
    I haven't given this a try yet as I found that my vitamin C tablets are the flavored, chewable type. I will pick up some pure C when I am near the store again.

    I looked at the puck stain again this morning. It's actually a gray color, though the mess on the top step is more brownish/orange.
    blubluenoiseise

    My pool: 14,750 gallons in-ground plaster
    FAFCO Solar panels (seven 4' x 12') with a Goldline automatic controller
    1/2 HP WhisperFlo filter pump, Kreepy Krauly cleaner, Cartridge Filter
    Aquarite SWG, Satisfied user of the TF-100 Test Kit

Posting Permissions

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