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

Thread: concentrated Clorox bleach

  1. Back To Top    #1

    Join Date
    Oct 2015
    Location
    Orinda, California
    Posts
    56

    concentrated Clorox bleach

    I am using the PoolMath calculator and am not sure of the exact amount of Clorox concentrated bleach to add. Example: when using the calculator it says to add 121 oz of 8.25% strength. My question is should I add 121 oz of concentrated? Is the concentrated the equivalent of 182 oz? or some other amount of Clorox bleach. I guess my question is does the calculator assume that I am adding "concentrated"
    thanks in advance
    TJ
    28,000 gallon IG pool, plaster, built approx. 1970.
    1 1/2 " plumbing. Pentair, Intelliflo 3 hp variable speed.
    Crystal Water cartridge filter system, model #425
    Dolphin Deluxe 4,

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: concentrated Clorox bleach

    Quote Originally Posted by TJTJ View Post
    I am using the PoolMath calculator and am not sure of the exact amount of Clorox concentrated bleach to add. Example: when using the calculator it says to add 121 oz of 8.25% strength. My question is should I add 121 oz of concentrated? Is the concentrated the equivalent of 182 oz? or some other amount of Clorox bleach. I guess my question is does the calculator assume that I am adding "concentrated"
    thanks in advance
    TJ
    Pretty much all brand name bleach now is 8.25%. It used to be 6% was the standard. So they claim 121 oz now is equivalent to 182 oz then, even though it's not quite. The calculator just asks for the strength (8.25%) and gives you the right amount in fluid ounces. No extra arithmetic is required on your part to figure out equivalence.
    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!

  3. Back To Top    #3
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,975

    Re: concentrated Clorox bleach

    Whatever percentage strength you see on the ingredients label (i.e. 6%, 8.25%, 10%, etc), that's what you manually enter in the WEIGHT field on the calculator. The calculator will do the rest.
    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!

  4. Back To Top    #4

    Join Date
    Oct 2015
    Location
    Orinda, California
    Posts
    56

    Re: concentrated Clorox bleach

    If poolmath says to add 121 oz of 8.25% strength, to increase FC by 2.7 and our pool consumes 2.7 FC each day, I must add this amount daily to keep FC the same.
    Seems fairly expensive @ 4.00 per bottle at home depot. I actually calculate our pool consumes less than 2 FC daily. I was just using 2.7 for the example.
    TJ
    28,000 gallon IG pool, plaster, built approx. 1970.
    1 1/2 " plumbing. Pentair, Intelliflo 3 hp variable speed.
    Crystal Water cartridge filter system, model #425
    Dolphin Deluxe 4,

  5. Back To Top    #5
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,975

    Re: concentrated Clorox bleach

    2 - 2.7 per day is a very good FC consumption rate. Mine is about 2.5. When it gets over 4 ppm then we start to worry. But I do shop around locally for the best price in bleach. After all ... bleach is bleach (sodium hypochlorite), so if your Wal-Mart Great Value is cheaper at $2.95 per gallon, use that. In your area, you may have some local vendors that sell chlorine in bulk that will help as well. At TFP, we're bargain shoppers.
    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!

  6. Back To Top    #6

    Join Date
    Oct 2015
    Location
    Orinda, California
    Posts
    56

    Re: concentrated Clorox bleach

    Texas Splash - I'm guessing you are using ~ 1 gallon per day. 365 x $2.95 = $1,076 I have been using cal hypo, but I am changing so my calcium doesn't get high. Of course then I have to drain and re-fill with tap water. Do you think you are spending that many $$ to chlorinate your pool? Thanks, TJ
    28,000 gallon IG pool, plaster, built approx. 1970.
    1 1/2 " plumbing. Pentair, Intelliflo 3 hp variable speed.
    Crystal Water cartridge filter system, model #425
    Dolphin Deluxe 4,

  7. Back To Top    #7


    TFP Guide

    Join Date
    Jul 2015
    Location
    Central Valley CA
    Posts
    1,073

    Re: concentrated Clorox bleach

    At the start of the season Wal-Mart started selling 10% for $2.50 a gallon. It is a good idea to check the date code as it does degrade with time but even if it's a couple of months old as long as it was not stored in the sun it should still be 7 to 8% in strength and therefore a good deal. To give you some perspective though I pulled up a 4LB bucket of Trichloro tabs from Wal-Mart it cost $33.46 for what I calculate to be 16PPM of FC for a pool your size. I have never bough tabs and so don't know if that is a good deal or not it is just the first result I got. On the other hand 6 gallons of $4 8.25% bleach would give you 18ppm for $24 without raising your CYA and making you have to add even more in the future to obtain the same result. The other option is you could switch to a SWG by most accounts the cost per PPM of FC turns out to be the same just with SWG you pay up front in the form of equipment but that can be easier for some to just get it over and done with.
    12,300 Gallon, IG PebbleFina, 3 ft sheer, 2 Jandy nicheless LED lights, Jandy Pro 1.5HP VS pump (A.O. Smith Motor), PB4-60 Booster pump, Polaris 280, Jandy cv340 cartridge filter, Zodiac Z4 control panel W/iAquaLink, Stenner pumps for chlorine & MA connected to WiOn WiFi switches, TF-100. You can support TFP with AmazonSmile just click the link!

Posting Permissions

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