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Thread: I did some calculations based on current chlorine pricing...Leslie's is a good deal?

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    I did some calculations based on current chlorine pricing...Leslie's is a good deal?

    With the recent Walmart rollback rollback of the $2.50 10% chlorine I decided to do some calculations using current prices. I have come to the conclusion that Leslie's Pool 12.5% is the best deal. I am in no way affiliated with Leslie's. I just want the best bang for my buck.

    Here are my calculations...if my logic is flawed, i'd like the feedback.

    Current prices:
    8.25% $3.09 Walmart 121 fl oz
    10.0% $3.43 HD/Lowe's 1 Gal
    12.5% $4.50 Leslie's (sold in two pack) 1 Gal

    To increase 15,000G pool 1 ppm according to Pool Pal
    8.25% it takes 23 fl oz (5.26 ppm/bottle)
    10.0% it takes 19 fl oz (6.74 ppm/bottle)
    12.5% it takes 15 fl oz (8.53 ppm/bottle)

    so if I had to raise my pool 1ppm per day i would go through
    @ 8.25% 1.3 bottles per week roughly
    @ 10.0% 1.0 bottles per week roughly
    @ 12.5% .82 bottles per week roughly

    Cost per month assuming 4 weeks in a month
    $16.07 for 8.25%
    $13.72 for 10.0%
    $13.44 for 12.5% (WINNER)

    So is this right? All bets are off if Walmart sells for $2.50 again.

    Chris

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    mas985's Avatar
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    Re: I did some calculations based on current chlorine pricing...Leslie's is a good de

    The higher concentrations will tend to degrade faster so although they say it is 12.5%, it may not be that by the time you get to use it. Especially since some places stock outdoors in the heat.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Chasmengr's Avatar
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    Re: I did some calculations based on current chlorine pricing...Leslie's is a good de

    Quote Originally Posted by Chris_N View Post
    . . .

    Current prices:
    8.25% $3.09 Walmart 121 fl oz
    10.0% $3.43 HD/Lowe's 1 Gal
    12.5% $4.50 Leslie's (sold in two pack) 1 Gal

    . . .

    So is this right? All bets are off if Walmart sells for $2.50 again.

    Chris
    Try this handy online tool; its results:

    Walmart = $0.310/oz 100% chlorine
    Lowe's = $0.268
    Leslie's, = $0.281


    Walmart at $2.50 = $0.250

    Trivia: My pool consumes just over 3 ppm/day or 5.3 oz 100% chlorine/day. So the spread of $0.06/oz (0.31 - 0.25) yields a price swing of about $0.32/day or about <$10.00/month.
    Chas & Cheryl (first-time, second-year pool owners)
    Radiant Metric Oval AGP 16'x32'x52"; Pentair: Clean&Clear 150 Cartridge, OptiFlo 1.5 Hp 2-spd, and 320C Feeder (all mounted below water level); Taylor K-2006 & SpeedStir; Maytronics Dolphin E10 (aka Einstein)
    installation pics (2015-2016)

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    Re: I did some calculations based on current chlorine pricing...Leslie's is a good de

    I am paying $3.59 per 128 oz gal. of HASA 12.5%, which is always fresh and stronger 14% estimate based on use & Pool Math

    I purchase a 4/Case at a local pool store 5 minutes from house, easy in easy out...round trip about 10-15 minutes, so I am happy to do so and maybe pay a bit more and never a worry.
    Valley of the Sun, Arizona.....10k gunite/pebble (Re-surface March 2015) w/in floor Caretaker 99 cleaning heads -- Pentair FNS 60 DE filter -- Pentair IntelliFlo Variable Speed for pool -- Pentair Wisperflo 1 HP for boulder waterfall...Taylor K-2006 & Taylor K-2006C kits

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    Re: I did some calculations based on current chlorine pricing...Leslie's is a good de

    The bleach i'm getting at my local Leslies recently says it is 10%, but it's not a Leslies brand. They charge $8.99 for 2 gallons.

    A while ago I got some 10% pool bleach (different brand) at Home Depot for less money, and used it right away, and found it was very weak. I put in enough to add 2 ppm of FC, and a couple hours later there was no change. They store the 2-pack boxes of chlorine in their outside area in a spot where it gets full sun all afternoon. I don't know how old it was when I bought it, but I recently learned that there is a 5 digit code stamped on the boxes of chlorine bottles. The first 2 digits are the year it was produced and the next three digits are the day of the year. Next time I go to HD, I will look at the boxes to see how old they are (out of curiosity), but I won't buy them as long as they are stored in the sun. The bottles I bought at Leslies recently were only 32 days old.
    16,000 gallon outdoor in-ground 16'x32' plaster pool (built 2002); Pentair Intelliflo VF pump; Jandy Cartridge filter;Rainbow in-line chlorinator (used only when I am away); Hayward 2 wheel suction-side pool cleaner; LARS gas heater, Taylor K-2006 FAS-DPD test kit

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    Re: I did some calculations based on current chlorine pricing...Leslie's is a good de

    Quote Originally Posted by RGS View Post
    The bleach i'm getting at my local Leslies recently says it is 10%, but it's not a Leslies brand. They charge $8.99 for 2 gallons.

    A while ago I got some 10% pool bleach (different brand) at Home Depot for less money, and used it right away, and found it was very weak. I put in enough to add 2 ppm of FC, and a couple hours later there was no change. They store the 2-pack boxes of chlorine in their outside area in a spot where it gets full sun all afternoon. I don't know how old it was when I bought it, but I recently learned that there is a 5 digit code stamped on the boxes of chlorine bottles. The first 2 digits are the year it was produced and the next three digits are the day of the year. Next time I go to HD, I will look at the boxes to see how old they are (out of curiosity), but I won't buy them as long as they are stored in the sun. The bottles I bought at Leslies recently were only 32 days old.
    That's the particular one that I am talking about. They are locally distributed out of El Cajon. If I'm not mistaken it's actually 12.5%. If it's 10 you're better off cruising to Walmart in Encinitas or Oceanside.

    - - - Updated - - -

    Quote Originally Posted by oldguy70 View Post
    I am paying $3.59 per 128 oz gal. of HASA 12.5%, which is always fresh and stronger 14% estimate based on use & Pool Math

    I purchase a 4/Case at a local pool store 5 minutes from house, easy in easy out...round trip about 10-15 minutes, so I am happy to do so and maybe pay a bit more and never a worry.
    If I could find hasa locally...that would be my preferred buy.

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