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Thread: Chlorine loss through out the day

  1. Back To Top    #1

    Join Date
    May 2016
    Location
    Latrobe, PA
    Posts
    33

    Chlorine loss through out the day

    So I usually lose between 1 - 5 ppm of chlorine in any given day depending on sun and temp, over night I only lose max of .5 ppm. Is this normal? We do not keep our pool covered although we do have a solar cover just never use it, and will using the solar cover slow down the chlorine loss?

    Water is crystal clear and not a sign of algae. I usually add my chlorine in the evening when I get home from work at around 530 pm. I take my Chlorine up to 6 ppm and by the time I get home from work the next day it is usually down to 1.5 - 2 ppm. I know this is low but I have no way of adding in the middle of the day.

    Here is my most recent full set of test

    FC - 6
    CC - 0
    PH - 7.6
    TA - 130
    CYA - 35

    Thanks
    Pool - Above Ground 24' Round by 52" Deep
    Filter - Hayward EC40C92S
    Pump - Hayward 1HP Pump
    Test Kit - Taylor K-2006

  2. Back To Top    #2

    Join Date
    Mar 2015
    Location
    South Texas
    Posts
    411

    Re: Chlorine loss through out the day

    For your CYA of 40 (rounding up), you should target a FC of 5 but never let it drop past 3. Average FC loss is 2-3 ppm per day, so you seem a bit much. I would perform an OCLT if you haven't already.

    And since you're adding once per day, maybe shoot for FC of 7 or 8 to be safe.
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

  3. Back To Top    #3

    Join Date
    May 2016
    Location
    Latrobe, PA
    Posts
    33

    Re: Chlorine loss through out the day

    Yeah I have done OCLT many times and the most I lose over nigh is 1 ppm and most nights it was only .5. The last time I did an OCLT was Monday because were away all weekend and had someone adding 2 quarts of chlorine for us per day while we were gone. Low and behold when I tested Monday morning we only lost .5 ppm. Would adding my solar cover slow down the rate of loss throughout the day?

    Thanks
    Pool - Above Ground 24' Round by 52" Deep
    Filter - Hayward EC40C92S
    Pump - Hayward 1HP Pump
    Test Kit - Taylor K-2006

  4. Back To Top    #4
    borjis's Avatar
    Join Date
    Aug 2014
    Location
    Pacific NW
    Posts
    2,058

    Re: Chlorine loss through out the day

    Quote Originally Posted by damato300x7 View Post
    Would adding my solar cover slow down the rate of loss throughout the day?
    If the pool is exposed to the sun, the cover will certainly help if it's NOT a clear one. (blue/black/silver etc... to block uv)

    I have mine covered on weekdays and might uncover it to swim in the evening.

    Right now, with no swimming this week and solar cover on (weather got cloudy/cold) I lose 1 ppm every three days.
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

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