Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: Liquid Chlorine Question

  1. Back To Top    #1

    Join Date
    Feb 2011
    Location
    Bakersfield, California
    Posts
    23

    Liquid Chlorine Question

    Can liquid chlorine lose it's punch after a couple of years of sitting in the shed? I use the liquid variety for my AGP. I needed to raise the chlorine level, and used some from a bottle that had been sitting for 2 years. Before adding, I took a bit of a smell, and then a deeper one because I couldn't detect anything. It had absolutely no smell at all. Like smelling a jug of water. Shouldn't it kind of smell like Clorox?

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Liquid Chlorine Question

    It has probably degraded, especially if the shed was exposed to hot temperatures (say, in the summer). This page at the bottom shows the half-life of chlorine at different concentrations and this is for high-quality product.

    Yes, you normally smell a bleach/chlorine smell in concentrated product.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Liquid Chlorine Question

    Yes chlorine loses strength, although I can not remember how fast, but it is a function of the temperature it was stored at as well. There is a thread somewhere with a table.

    After a few years, there is likely very little FC left in the bottle.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4

    Join Date
    Feb 2011
    Location
    Bakersfield, California
    Posts
    23

    Re: Liquid Chlorine Question

    Thanks folks, that makes sense. I'll buy be some new product. I've also got muriatic acid that is equally as old, but that stuff is as overbearing as always. Guessing that's ok.

  5. Back To Top    #5
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Location
    Midland TX
    Posts
    15,001

    Re: Liquid Chlorine Question

    Yes, I would say 2 y.o. bleach in a shed is no good, and if it were mine, I wouldn't use it. However, brand new bleach in the container doesn't have an overly strong smell, and this is not a reliable test for bleach strength. There is likely nothing wrong with the acid and a smell test of that is not a good thing to do as I am sure you noticed. If you can, I suggest storing those two items away from each other, in seperate locations if at all possible. If not, take all precautions to ensure they NEVER have a chance of mixing incase of leaks or spills.

    Ok...there is my safety spiel for the day.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  6. Back To Top    #6

    Join Date
    Feb 2011
    Location
    Bakersfield, California
    Posts
    23

    Re: Liquid Chlorine Question

    Will do!

Posting Permissions

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