+ Reply to Thread
Results 1 to 10 of 13

Thread: Can't hold FC

Hybrid View

  1. #1
    Join Date
    Jun 2011
    Location
    Virginia
    Posts
    14

    Default Re: Can't hold FC

    Thanks for the correction. Good progress after two nights of 10 gallons. After the first night, i was able to hold between .65 and 1.3 for 24 hrs.according to my liquid test kit. This morning (8 hrs later) I am testing 10 plus (Taylor Kit not arrived yet).

    Question on the ammonia test. First, I purchased the liquid test kit from Pet Smart. It has a excellent color chart with a white background that allows you to get a true color comparison. My question is should I use the chart for fresh water or salt water.
    I read somewhere that bleach does add salt. If it is freah water, I have gone from .50 to .25. If it is salt water, I am .0

    I feel good about the progress. I am sure my recycle guy will wonder what I am doing with all the bleach.

  2. #2
    PoolDoc's Avatar
    PoolDoc is offline Administrator Quark Inspector PoolDoc 5 stars PoolDoc 5 stars PoolDoc 5 stars PoolDoc 5 stars PoolDoc 5 stars PoolDoc 5 stars PoolDoc 5 stars
    Join Date
    Jan 2005
    Location
    Georgia
    Posts
    11,386

    Default Re: Can't hold FC

    Your use of bleach wouldn't be enough to make the water "salt".

    Regarding bleach bottles, I've seem some pictures of them stacked WAY high when folks had to clean up a swamp on a large pool.

    In a few places you can buy fresh industrial bleach (10 - 15%) in 3 - 5 gallon containers.

  3. #3
    chem geek is offline PF Supporter Whibble Konker chem geek 4 stars chem geek 4 stars chem geek 4 stars chem geek 4 stars
    Join Date
    Nov 2004
    Location
    California
    Age
    66
    Posts
    2,226

    Default Re: Can't hold FC

    For every 10 ppm Free Chlorine (FC) added by ANY source of chlorine, the chlorine when consumed/used will result in 8 ppm salt. For bleach or chlorinating liquid, they add an additional 8 ppm salt upon addition. With 2 ppm FC per day chlorine usage, this means that bleach or chlorinating liquid will add around 100 ppm salt per month if there were no water dilution, so not very much given that salt water chlorine generator pools are 3000 ppm.

  4. #4
    Join Date
    Jun 2011
    Location
    Virginia
    Posts
    14

    Default Re: Can't hold FC

    I think the FC issue has been resolved. I now have no ammonia. I used 10 gals of 6% bleach two night and 5 gals the third night. 33 hours later I have a FC 8.67 and TC 9.19 and combined .52

    I'm I correct in thinking I need to stay with bleach rather than continue using the Poollife/Calcium Hypocholrite since my Calcium Hardness 475 and my Cyanuric Acid is 68?

  5. #5
    Yeggim is offline Registered+ Thread Analyst Yeggim 0
    Join Date
    Aug 2010
    Location
    Philly
    Posts
    53

    Default Re: Can't hold FC

    Quote Originally Posted by nepsa View Post

    ...I'm I correct in thinking I need to stay with bleach rather than continue using the Poollife/Calcium Hypocholrite since my Calcium Hardness 475 and my Cyanuric Acid is 68?
    Yes, you are correct. Your thinking is very good and on the right track.

    I imagine it must sound like a broken record sometimes. Bleach, bleach, bleach. But it's the safest thing to add when chlorine is needed. It just adds chlorine, water and a minute amount of salt. Until new posters come back with water test results, liquid chlorine (bleach) is recommended for just that reason.

    Then there's situations like yours. Liquid chlorine then becomes the only chlorine source that should be used. Looks like you done your homework.

  6. #6
    Join Date
    Jun 2011
    Location
    Virginia
    Posts
    14

    Default Re: Can't hold FC

    Thanks so much for your help. By the way, I went to the pool store to get a test from them. They were clueless to the ammonia issue. When I started to share about the bleach, he tried to change the subject, but I did not let him off the hook.

    Now that I have my problem corrected, I have the time to start reading the very value information your forum provides.
    Until the next time---have a good one!

+ Reply to Thread

Similar Threads

  1. Chlorine Won't Hold
    By kkresse in forum Pool Chemicals & Pool Water Problems
    Replies: 5
    Last Post: 05-21-2012, 09:17 PM
  2. Will not hold chlorine
    By VetteGuy in forum Pool Startup, Shutdown, & Winter Operation
    Replies: 2
    Last Post: 03-21-2012, 04:11 PM
  3. Chlorine will not hold
    By wposton84 in forum Using Chlorine and Chlorinating Chemicals
    Replies: 11
    Last Post: 08-21-2010, 03:34 PM
  4. Cant hold chlorine
    By herrmanncr in forum Using Chlorine and Chlorinating Chemicals
    Replies: 36
    Last Post: 06-30-2010, 11:08 AM

Tags for this Thread

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