sequestering agent

  1. J

    What is the best sequesterant to use after AA treatment?

    We closed our pool last year with some iron stains on the vinyl liner surfaces. We identified the stains as iron by using Vitamin C tablets. It was too late in the season to bring the pool to 0 FC and then wait to SLAM for closing. So we closed the pool and just opened it back up. After doing a...
    • jhendric23
    • Thread
    • ascorbic acid iron stains metal stain pool chemistry sequestering agent
    • Replies: 1
    • Forum: The Deep End...
  2. dclynds

    Help With Sequestering Agent

    Hello TFPers, Can someone help me outright or point me to a guide on which Sequestering agent to use for which metal problem with respect to pool finish? I need to do an ascorbic acid treatment to get rid of some pale-brownish stains that are cropping up in my pool (confirmed not algae) and I...
    • dclynds
    • Thread
    • ascorbic acid iron stain metal stain plaster sequestering agent
    • Replies: 4
    • Forum: The Deep End...
  3. J

    Fiberglass Pool Gelcoat Chalking

    I have an older fiberglass pool that was refinished 2 years ago. The sides of the pool are chalking. You rub your hand on the surface and a creamy white chalky material comes off on your hand. I have been told that it is do to low calcium and I’ve also been told you need to use a sequestering...
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