+ Reply to Thread
Results 1 to 4 of 4

Thread: 120 ppm of chlorine in pool

  1. #1
    Join Date
    Dec 2005
    Location
    Honolulu, Hawaii.
    Posts
    250

    Default 120 ppm of chlorine in pool

    Has anyone ever tried over 100 ppm of chlorine in their plaster pool?

    What would be the negative effects?

    The reason for asking this question is that I have always had an iron staining problem and according to the white paper (link listed below) it could be due to bacteria that creates iron but cannot be killed unless the level of chlorine reaches above 100 and up to 500 ppm.

    Any thoughts would be welcome.

    http://srwqis.tamu.edu/downloads/SoR...MaintGuide.pdf

  2. #2
    Join Date
    Dec 2004
    Location
    Indiana.
    Posts
    700

    Default Re: 120 ppm of chlorine in pool

    I'm pretty sure bacteria don't create iron. There are bacteria that eat iron, but they are anaerobic, so they wouldn't be an issue in a pool.

  3. #3
    Join Date
    Dec 2005
    Location
    Honolulu, Hawaii.
    Posts
    250

    Default Re: 120 ppm of chlorine in pool

    That is what I thought.

    But Section 6.12 on page 26 states;

    "Dissolved iron in irrigation water is usually caused by microbial
    activity."

    And;

    "Iron bacteria are notoriously difficult to kill, partly because they
    may live in the irrigation well. Periodic acid or chlorine
    treatments of the well are sometimes effective."

    On page 13 it suggests;

    "At higher concentration (100 to 500 ppm) it can oxidize organic
    matter, and can be used to disintegrate organic materials that
    have accumulated in emitters."

    Any thoughts.


  4. #4
    Join Date
    Dec 2005
    Location
    Honolulu, Hawaii.
    Posts
    250

    Default Re: 120 ppm of chlorine in pool

    John,

    You peeked my interest so I researched further and indeed they do exist. The following American Ground Water site has an interesting article on it see link below.

    The problem is I would need 90 gals of chlorine to kill the little critters 1:100 if one reads the article. So I think I will just have to live with them.

    Thank you for helping me think.

    http://www.agwt.org/bacteria_info.htm

+ Reply to Thread

Similar Threads

  1. Chlorine tabs vs chlorine bleach generic
    By Cahoonh in forum Using Chlorine and Chlorinating Chemicals
    Replies: 6
    Last Post: 06-13-2013, 09:28 AM
  2. High Chlorine Level with no Chlorine Added in 6 weeks
    By morechoff in forum Pool Chemicals & Pool Water Problems
    Replies: 3
    Last Post: 06-27-2006, 07:52 AM
  3. Free Chlorine vs. Total Chlorine adjusting
    By Truckman in forum Testing and Adjusting Pool Water Chemistry
    Replies: 16
    Last Post: 06-08-2006, 05:00 PM
  4. alternatives to chlorine/non-chlorine pool maint
    By leewest in forum Dealing with Stains & Metals, . . . and 'Minerals' & 'Ions',
    Replies: 3
    Last Post: 04-04-2006, 10:53 PM

Bookmarks

Posting Permissions

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