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Thread: Chlorine %

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    Chlorine %

    I have been reading here everyone that buys Walmart Great Value bleach is 8.25%. My local Walmart Great Value bleach says 4.25% on the jug??
    I tested it (.1ml/1L) and it tested out to 4.5%. Cant seem to see any 8.25% stuff other that Clorox brand.
    Also I tested some liquid chlorine labelled 10.8% and it tested at 14%. Does that sound normal ?
    20x40 IG Vinyl Pool, New Kafko Liner, 6 Foot Stairs, 35000 Gallons, Hayward Sand Filter, Hayward Pump, (Lonely Inline Chlorinator) Solar Panels, Self Built 1999, TF-100(2015)

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    Mod Squad jblizzle's Avatar
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    Re: Chlorine %

    It is possible that the FC % is higher than the label if it is very fresh ... although the testing procedure can be pretty inaccurate as well.
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    Re: Chlorine %

    Yes thats what I thought. Think I will add to pool calculator based on 10.8% and 14% seperately and calculate how much it brings up my FC level in pool water after testing and go from there.
    20x40 IG Vinyl Pool, New Kafko Liner, 6 Foot Stairs, 35000 Gallons, Hayward Sand Filter, Hayward Pump, (Lonely Inline Chlorinator) Solar Panels, Self Built 1999, TF-100(2015)

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    Re: Chlorine %

    I think you may have the cleaning (household) bleach, or maybe easy pour? The standard Walmart bleach is 8.25% (costs $2.94 for 121 oz here)....I don't think it would differ much in cost anywhere, and the % chlorine should be the same.
    Edit- I see you're in Canada, so I don't know what's available there
    20000 gallon vinyl liner in ground pool
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    Re: Chlorine %

    Yes i am in Canada. The Great Value bleach is not easy pour. Just their regular bleach. I checked all they stock on the shelf and its all 4.25% ( $1.98 for 121 oz). Possibly a Canadian Walmart thing? I am close to USA so next trip south I will look in the Walmart and see if they have the 8.25%.
    20x40 IG Vinyl Pool, New Kafko Liner, 6 Foot Stairs, 35000 Gallons, Hayward Sand Filter, Hayward Pump, (Lonely Inline Chlorinator) Solar Panels, Self Built 1999, TF-100(2015)

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    Mod Squad tim5055's Avatar
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    Re: Chlorine %

    That is strange that they would not have it north of the border. I would talk to the store manager. Usually the 121 oz is the key that it is the "concentrated" stuff.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    BobbyR's Avatar
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    Re: Chlorine %

    Cheetah, a ten litre jug of 12% liquid chlorine is $5.99 at the local pool store here (Toronto area). 121 oz of the Walmart bleach is about 3.5 litres so you are paying 10/3.5x$1.98=$5.66 for ten litres of the Walmart bleach, about the same price per litre but it is just over a third as strong. Bottom line is that the Walmart bleach well over twice as expensive per unit of chlorine. Unless liquid chlorine is unavailable in your location or costs far more than here, you should probably use it instead. If it is, in fact, 8.25%, then it starts looking better but is still higher price.

    Hopefully I haven't missed something in my calculation.
    Lagoon 40x22, Vinyl, 27,000 gal, 1HP WhisperFlo Pump, Pentair 60 gpm Sand filter, Hayward Brominator (used for chlorine pucks only when away), Rheem gas heater, Dolphin M4 Robot
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