Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Iron stains

  1. Back To Top    #1

    Iron stains

    I will be using ascorbic acid to remove iron stains from my vinyl liner(as per the instructions on this forum). I just opened my pool and I'm sure my chlorine is at zero as I have not added any since last fall. All I have done so far is turned on my pump, vacumed and added 25oz of polyquat-60 I have not tested any levels yet. The water is clear.

    Before I add the ascorbic acid should I get my ph and alkalinity within a certain range? If yes, what levels?


  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    If you haven't seen it before there is a write up on the ascorbic acid treatment for removing stains.

    You want the water to be at more or less normal chemical levels, a little off isn't a problem but way off would be a problem. Since the pool has been closed for the winter there is some chance things will be way off, though most likely they are fine where they are. So test the water and adjust anything that is way off.
    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

Posting Permissions

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