Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Unscented/regular scent bleach

  1. Back To Top    #1

    Join Date
    Sep 2015
    Location
    Dallas Texas
    Posts
    53

    Unscented/regular scent bleach

    I bought some generic "regular scent" bleach at the grocery store. When I used it, it literally had no scent. I'm concerned it's expired or too diluted; does unscented/regular scent not smell like the traditional bleach odor?
    Fiberglass pool 5300 gallons (trilogy eclipse)
    inground
    Cartridge filter
    2HP hayward ecostar sp3400vsp

  2. Back To Top    #2
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,079

    Re: Unscented/regular scent bleach

    Bleach itself doesn't have much scent, until it starts to oxidize something. Pour a little into the sink, then take a whiff.

    Alternatively most bleach bottles have a "born on" or expiration date code on the bottle. Many times it looks like this: "16058" or something similar. 16058 would mean it was made on the 58th day of 2016. See this thread here: Chlorine Date Code Decoder/Easy Way to Measure Strength.

    The older bleach is, the more strength it has lost.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  3. Back To Top    #3

    Join Date
    Sep 2015
    Location
    Dallas Texas
    Posts
    53

    Re: Unscented/regular scent bleach

    Quote Originally Posted by Meaty View Post
    I bought some generic "regular scent" bleach at the grocery store. When I used it, it literally had no scent. I'm concerned it's expired or too diluted; does unscented/regular scent not smell like the traditional bleach odor?
    Thanks; makes me feel better. I'll try to determine its age too. How long does bleach typically retain its potency?
    Fiberglass pool 5300 gallons (trilogy eclipse)
    inground
    Cartridge filter
    2HP hayward ecostar sp3400vsp

  4. Back To Top    #4
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,079

    Re: Unscented/regular scent bleach

    That's a complicated answer. The higher the initial concentration, the faster the hypochlorite will decay. Higher temperature will increase the rate of decay. Exposure to UV light will cause decay. Metal contaminants not removed from the bleach during manufacturing will increase decay.

    When stored properly, regular old grocery store bleach that is fresh when purchased should retain most of it's strength for 2-4 months before noticing a loss of strength.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  5. Back To Top    #5

    Join Date
    Feb 2016
    Location
    Austin, TX
    Posts
    13

    Re: Unscented/regular scent bleach

    Did the generic bleach show the percentage concentration of acid? The generic bleach that was left by the contractor didn't list the concentration (about 15 bottles). It hardly had any smell and i'm real sensitive to the smell of bleach. Though it was about 6 months old.

    I'm using 10% pool chlorinating "bleach" by Pool Essentials from Walmart for $3.64 a gallon, 10% sodium hypochlorite concentration. Probably about the same price that I can get the 3 packs of Clorox bleach from Sam's Club or Costso, which are a bit smaller (121 oz) and have a lower concentration (8.3%). Think i will use this to clean the cedar fence too.
    Austin, TX
    17,000 gallon pool
    In ground.
    Concrete.
    Crystal Water DE Filter - 48 sq ft.

  6. Back To Top    #6
    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    Location
    'burbs of Augusta, Georgia
    Posts
    6,488

    Re: Unscented/regular scent bleach

    One way to determine if the bleach is still "good" is to test your FC about an hour after adding it and see if it brought your FC to the desired level (per PoolMath)
    My Amazon Smile for November12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

  7. Back To Top    #7

    Join Date
    Sep 2015
    Location
    Dallas Texas
    Posts
    53

    Re: Unscented/regular scent bleach

    Quote Originally Posted by Alloy25 View Post
    Did the generic bleach show the percentage concentration of acid? The generic bleach that was left by the contractor didn't list the concentration (about 15 bottles). It hardly had any smell and i'm real sensitive to the smell of bleach. Though it was about 6 months old.

    I'm using 10% pool chlorinating "bleach" by Pool Essentials from Walmart for $3.64 a gallon, 10% sodium hypochlorite concentration. Probably about the same price that I can get the 3 packs of Clorox bleach from Sam's Club or Costso, which are a bit smaller (121 oz) and have a lower concentration (8.3%). Think i will use this to clean the cedar fence too.
    Unfortunately not, it doesn't list the concentration. I'll have to pay better attention when I buy next

    - - - Updated - - -

    Quote Originally Posted by YippeeSkippy View Post
    One way to determine if the bleach is still "good" is to test your FC about an hour after adding it and see if it brought your FC to the desired level (per PoolMath)
    Great idea. Thank you
    Fiberglass pool 5300 gallons (trilogy eclipse)
    inground
    Cartridge filter
    2HP hayward ecostar sp3400vsp

Posting Permissions

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