Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 22

Thread: NO chlorine

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    NO chlorine

    Have have had my 30K gal inground for 20+ years . this year for first time I can not get any FC reading. Put in 17 gal bleach at 8am all gone by noon. Last night but in 15# granular shock, today FC 0 CC 0 HELP!
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  2. Back To Top    #2
    Guest

    Re: NO chlorine

    What are using to test?

  3. Back To Top    #3

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    I have a ps232 kit from pool solutions
    CYA 60
    TA 200
    Cal 240
    FC 0
    CC 0
    TC .5
    PH 7.2
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  4. Back To Top    #4
    Guest

    Re: NO chlorine

    How old is it? It looks like a discontinued kit (I am worried about how accurate the reagents are).

  5. Back To Top    #5

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    5 yr old but also use new quick test and get same results for FC and TC
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  6. Back To Top    #6
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: NO chlorine

    What is your CYA level? CYA around zero allows all the chlorine to be consumed by sunlight very very quickly. If CYA is 20 or higher, you must have something in the water that is consuming a huge amount of chlorine. Ammonia, either from CYA disappearing over the winter, or fertilizer, can cause that.

    Regardless, you want to get your CYA level right and then keep adding chlorine until you can maintain an FC level.

    It wouldn't hurt to post a full set of water test results, that might give us additional clues.
    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

  7. Back To Top    #7
    Guest

    Re: NO chlorine

    He shows CYA of 60, so I'm not thinking that is the problem.

  8. Back To Top    #8

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    So..do I keep adding chlorine? what is the limit?? or do I drain and if so will half way be enough??/
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  9. Back To Top    #9
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: NO chlorine

    You keep adding chlorine. Sometimes, and it's just not clear why, there is a very heavy chlorine demand upon opening.

    Refer to the CYA chart for your shock level. Enter that as your "target" and calculate how much bleach to add. Test again after 1 hour, and do the same thing - your "now" test result and shock level as "target". Add the recommended dose of bleach. Eventually the FC will hold....

    I'd recommend replacing the test kit if it's 5 years old. You will be very satisfied with the TF100 or the Taylor K2006.

    Was the granular shock Dichlor? If so, what was the CYA level before you added the powder?

    One last thought - where did you buy the bleach and are you confident of it's strength?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  10. Back To Top    #10

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    would you please explain the CYA chart and How I determine the amount of bleach needed? thanks
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  11. Back To Top    #11
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: NO chlorine

    You find your CYA level, then to the right is your "min" FC level, your "Target" which is the number you will use for nitely bleach calculations and then your shock level.

    So for shocking - you test, enter your FC result in the "now" column, then your shock level in the "target" and hit calculate and it tells you how much bleach to add. Give it a try, let me know what you come up with.

    So were you using Dichlor shock?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  12. Back To Top    #12

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    Another question? the calculator calls for 12 gal of bleach, do I add this every night. for how long???
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  13. Back To Top    #13

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    my original CYA was 20 , I added 15 gal bleach and it was gone in 2 hr, that evening I added stabilizer at advice of my local pool store and later added 15# of dichor shock, . next am it registered 0 FC
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  14. Back To Top    #14
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,345

    Re: NO chlorine

    How much stabilizer did you add? I'm betting your CYA level is getting up there pretty good and it's important to know what it is.

    When you first start shocking it's not unusual to lose all your FC in a very short time. We recommend testing and adding as often as every hour. You will soon see the drop lessen and can extend the times between testing and adding.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  15. Back To Top    #15
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: NO chlorine

    Don't add any more stabilizer or use any more dichlor. Your CYA level was already 60 to start with, which is a little high, and it is now going to be noticeably higher.

    What you describe is very typical of ammonia in the water. Ammonia can come from CYA breaking down over the winter or from fertilizer getting into the pool. If you can get your water tested for ammonia, you can get some idea of how much chlorine you are going to need.

    You just need to keep adding chlorine until you burn off all the {EDIT}ammonia{/EDIT}.
    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

  16. Back To Top    #16
    Guest

    Re: NO chlorine

    Quote Originally Posted by JasonLion

    You just need to keep adding chlorine until you burn off all the chlorine.
    I think he meant "burn off all of the ammonia"

  17. Back To Top    #17
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: NO chlorine

    Quote Originally Posted by markscott
    Another question? the calculator calls for 12 gal of bleach, do I add this every night. for how long???
    Quote Originally Posted by frustratedpoolmom
    you test, enter your FC result in the "now" column, then your shock level in the "target" and hit calculate and it tells you how much bleach to add.
    You add the bleach, wait an hour and test again, then recalculate to reach shock level. You can do this up to hourly to speed the process up. You continue shocking, which means holding the FC as shock level, until the FC holds overnight and the CC is 0 and the water is clear. You keep testing and adding until you reach shock level. So if you don't reach it the first couple of times, keep adding it until you do.

    Do this make sense?

    Ok, retest the CYA level in a couple of days then... so we can see where you ended up, but 60 sounds about right after 15 lbs of Dichlor - you didn't mention how much stabilizer you added...
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  18. Back To Top    #18

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    I had added about 2# of stabilizer at he time. OK we finally have someFC this morning. water not clear yet so will continue with the frequent testing and adding.
    In retrospect I think fertilizer was the culpret due to the 2" stain on the steps where the water level was when we opened it.
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  19. Back To Top    #19

    Join Date
    Jun 2010
    Location
    Kansas
    Posts
    9

    Re: NO chlorine

    in reading a lot of these post I notice there is never a mention of using algeside, i have always include a few oz. of polyquat every few weeks..
    17,000 Gallon plaster pool. Hayward Perflex EC65 DE Filter. 3/4 HP Hayward Superpump converted to dual speed. CircuPool RJ45. Skimmer, floor drain, two returns.

  20. Back To Top    #20
    poolgirl22's Avatar
    Join Date
    Apr 2010
    Location
    Stephens City, VA
    Posts
    595

    Re: NO chlorine

    That's because as a general rule if you have enough FC in your pool according to your stabilizer then algae doesn't grow, hence you don't need to kill it or prevent it. Chlorine is the best algaecide. You also won't find much clarifier use here either.
    Backyard pool-less, but used to be.....
    16,100 gallon, 18x38 3.5 ft deep oval AG, Vinyl, Sand, 1hp pump
    http://www.poolservicestech.com Liquidator
    http://www.poolcalculator.com/
    http://www.tftestkits.net TFT100 test kit

Page 1 of 2 12 LastLast

Posting Permissions

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