+ Reply to Thread
Results 1 to 4 of 4

Thread: Chlorine Demand

  1. #1
    Join Date
    Dec 2005
    Location
    .
    Posts
    8

    Default Chlorine Demand

    Well Ive been following the methods described in this forum and the results have been good. Clear water! One concern I have is the amount of liquid bleach (6%) I am adding about 2-3 qts per day to keep the FC in the best quess range. The swimmer load has been moderate. My tests
    show
    FC=2
    pH= 7.8
    CC= 0.05
    TA= 170
    CA= 80
    CYA= ~35
    Temp= 84F
    Is this typical demand or is there something I need to look at?
    Thanks

  2. #2
    Sherra is offline Lifetime Member Weir Watcher Sherra 0
    Join Date
    Dec 1969
    Location
    South Carolina, United States.
    Age
    48
    Posts
    184

    Default Re: Chlorine Demand

    For some people this is normal. You might look at raising your CYA to around 40-50 and see if that helps any. According to the "best guess" chart, that would keep you in the same chlorine "need" bracket, but may help you keep the chlorine you've got a little longer...maybe stretching it out to needing every other day instead of every day.
    Sherra
    Kershaw County South Carolina
    18x34 IG 2' radius rectangle vinyl liner (approx 27,500 gal) 1 1/2" pipes installed March 2006
    (previous AG pool owner)

  3. #3
    Watermom's Avatar
    Watermom is offline SuperMod Emeritus Quark Inspector Watermom 4 stars Watermom 4 stars Watermom 4 stars Watermom 4 stars Watermom 4 stars Watermom 4 stars
    Join Date
    Dec 1969
    Location
    Charleston, WV
    Posts
    9,345

    Default Re: Chlorine Demand

    bmgo, you didn't tell us the size of your pool. But, 2-3 qts per evening is approximately what I use when we really get into the swim season with lots of hot, sunny days. Go ahead and bump your cya up to 40-50 and see if that works better for you.

  4. #4
    Join Date
    Dec 2005
    Location
    .
    Posts
    8

    Default Re: Chlorine Demand

    Thanks for input. I filled the pool last year (16x32) and put in ~21K gallons.
    The more I read about CYA the more confused I get. Some dont like any and I have read about some States banning use in Public pools as it reduces the effectiveness of CL so much. I quess it is a necessary evil as opposed to runing Chlorine into the pool all day. A great thing about using liquid bleach is the ability to manage FC more precisely.
    Thanks again

+ Reply to Thread

Similar Threads

  1. Chlorine Demand
    By gfritz1 in forum Using Chlorine and Chlorinating Chemicals
    Replies: 31
    Last Post: 08-27-2012, 09:26 PM
  2. Bucket testing for chlorine demand
    By PoolDoc in forum Using Chlorine and Chlorinating Chemicals
    Replies: 0
    Last Post: 06-18-2012, 06:23 PM
  3. Just getting started and have a chlorine demand problem
    By bjoy1956 in forum Testing and Adjusting Pool Water Chemistry
    Replies: 5
    Last Post: 06-05-2011, 05:19 PM
  4. never ending chlorine demand help
    By cloudy water in forum Pool Chemicals & Pool Water Problems
    Replies: 21
    Last Post: 07-17-2010, 11:04 PM
  5. Cloudy, then green with a never ending chlorine demand
    By cleancloths in forum Pool Chemicals & Pool Water Problems
    Replies: 23
    Last Post: 06-22-2010, 08:24 AM

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