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Thread: sodium hypochlorite bleach vs calcium hypochlorite

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    sodium hypochlorite bleach vs calcium hypochlorite

    I am seriously interested in starting the BBB method to cease with the trichlor tabs. The 2 questions i have are 1) can calcium hypochlorite be substituted for the sodium hypochlorite bleach and 2) after the pool is stabilized how often does the chlorine normally have to be added to maintain the proper disinfectant level. These may be elementary questions but maybe someone can help me.

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    JasonLion's Avatar
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    Welcome to TFP!

    CalHypo adds CH. If your starting CH levels are low you can go a fairly long time. But used constantly as your main source of chlorine cal hypo will eventually raise the CH level too high.

    Chlorine is normally added daily. With some effort you can get that down to every other day, but daily is more reliable and less expensive.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    Thank you. another question would be with the trichlor tabs i can load up the chlorinator and basically go off for a week with no problem. how do you handle leaving for several days on the bbb method using daily chlorination?

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    JasonLion's Avatar
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    Trichlor tablets can be used for several days to a little over a week once in a while for vacations and such. If you are going to be away for a couple of days every week then you might want to think about getting a SWG or bleach pump system.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Mod Squad jblizzle's Avatar
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    Welcome to TFP!!!

    If you start with your CYA low enough, you can load up the chlorinator and use the pucks temporarily for the week you are on vacation. You can use PoolMath to see how much CYA each 8 oz trichlor puck will add to your pool.

    Have you read any of Pool School? Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    how much liquid bleach is required to raise the cl 2-3 ppm in a 15,000gal pool?

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    AimeeH's Avatar
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    Re: sodium hypochlorite bleach vs calcium hypochlorite

    Have you checked out "Pool Math" in the link at the upper part of the page. Plug in your numbers and you can calculate. At the bottom is a section where you can estimate results of additions.
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