Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Chlorine consumption seems off

  1. Back To Top    #1
    lmnconn's Avatar
    Join Date
    May 2014
    Location
    Missouri
    Posts
    35

    Chlorine consumption seems off

    Let me post my numbers first:
    FC. 8.5
    CC. 0
    Ph. 7.8
    TA. 100
    CYA 70
    CH. 180 (Using Taylor test kit)

    OCLT done several nights and may use .5 at the most, so things seem good there. Water is sparkling, crystal clear. During the day I wil lose 4-5ppm chlorine. This seems like a lot of loss considering how high my CYA is. I am draining and adding water to try to lower my CYA. I like to keep it around 40. (I am testing before adding a bunch of new water, then retest once I'm done adding water and add chlorine to bring it to proper level overnight). Last year, keeping CYA at 40, I would only lose 1-2 ppm on full sunny days. I know my Ph is on the high end of the good range, it just shot up from a hard rain yesterday. My well water Ph tests at 7.2, so I will retest Ph after I'm done adding water today and see if I still need to lower it a little. Am I being overly critical here, or could I have some kind of problem brewing?
    St. Louis, MO, 25000 gal, 16x32 lagoon, vinyl, sand filter, Hayward pump, chlorine, install complete 9/12, Taylor TF100 test kit

  2. Back To Top    #2

    TFP Guide

    Azgirl71's Avatar
    Join Date
    Apr 2015
    Location
    Sierra Vista, Az
    Posts
    2,586

    Re: Chlorine consumption seems off

    That is a very normal FC loss. Nothing is wrong. You know the PH is a bit high and you are good to go.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

  3. Back To Top    #3
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Lakeland, FL
    Posts
    2,351

    Re: Chlorine consumption seems off

    With a CYA of 70 your at the the recommend lever for FC.
    http://www.troublefreepool.com/conte...art-slam-shock

    How are you measuring the CYA? Lighting (Bright sunny/cloudy/indoor lighting) will have some effect on being able to see the dot if your testing your self.

    Pool is clear, your maintaining the proper chlorine level. Enjoy your pool. The chlorine loss is the chlorine loss. Are you adding every day? You don't want to go below 5 on your FC, otherwise algae can take hold.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

  4. Back To Top    #4
    lmnconn's Avatar
    Join Date
    May 2014
    Location
    Missouri
    Posts
    35

    Re: Chlorine consumption seems off

    I check my pool every day, sometimes twice a day if doing OCLT. I do add chlorine every evening to keep it in proper range for CYA level. When I check CYA, it's been late afternoon sun. I would rather it be brighter sun, but we haven't had any sunny days on the weekends when I'm home lately. This is the 3rd year for our pool and it's never used that much chlorine during the day. Just had me a little worried. I thought maybe I was getting old chlorine that the store had leftover from last year, but it always comes up to my target when adding according to Pool Calculator. I would think if it was old stuff, it would take more to raise my FC.
    St. Louis, MO, 25000 gal, 16x32 lagoon, vinyl, sand filter, Hayward pump, chlorine, install complete 9/12, Taylor TF100 test kit

  5. Back To Top    #5
    lmnconn's Avatar
    Join Date
    May 2014
    Location
    Missouri
    Posts
    35

    Re: Chlorine consumption seems off

    I must have had some of last year's chlorine because I'm buying the same stuff now and back to only losing 1-2ppm each day. I guess it's good to know my pool so well, but sometimes I get a little paranoid when something is out of the norm.
    St. Louis, MO, 25000 gal, 16x32 lagoon, vinyl, sand filter, Hayward pump, chlorine, install complete 9/12, Taylor TF100 test kit

  6. Back To Top    #6
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,975

    Re: Chlorine consumption seems off

    Well then, now it's time to enjoy your pool!
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  7. Back To Top    #7
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Chlorine consumption seems off

    Quote Originally Posted by lmnconn View Post
    I must have had some of last year's chlorine because I'm buying the same stuff now and back to only losing 1-2ppm each day. I guess it's good to know my pool so well, but sometimes I get a little paranoid when something is out of the norm.
    I'd say you now have a confirmed case of sparklypoolitis.

    Just think of those poor schmucks who still rely on the pool store and weekly testing. They haven't got a clue what's going on in their water. This is a perfect example of why self-testing is the way to go. You knew something was wrong right away. You didn't have to wait for it to turn murky and green.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  8. Back To Top    #8
    lmnconn's Avatar
    Join Date
    May 2014
    Location
    Missouri
    Posts
    35

    Re: Chlorine consumption seems off

    I'd love to get in and swim, but we've had excessively rainy and cool weather this past month. Water is still too cold for me @75. I like it in the 80's. I'm hoping to get on my big pool float today. It's one that keeps me pretty much up, out of the water. At least I'll kind of be in it!! This is the first weekend in 5 weeks where we aren't getting rain. And Sparlkypoolitis is such a good thing to have!!! So glad I found this website/forum!!!
    St. Louis, MO, 25000 gal, 16x32 lagoon, vinyl, sand filter, Hayward pump, chlorine, install complete 9/12, Taylor TF100 test kit

Posting Permissions

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