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Thread: Adding bleach and muriatic acid at the same time?

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    triplets&quads's Avatar
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    Adding bleach and muriatic acid at the same time?

    I need to raise my FC to shock level and lower my PH. My darling husband just put the bleach in before I could stop him, so now I need to know how long do I have to wait to add the acid to lower the ph?
    I AM LOVING THE SALT WATER AND THE BBB METHOD! 15 yr old 15,300 gal ABG, with 5 yr old liner, 5 yr old AquaTrol SWG, S220T Hayward Sand Filter, 1 1/2 HP 2 speed Hayward Pump, TF100 Test Kit, 11 yr old grandson, 6 yr old grand-quads AND 4 year old triplet grandsons! ~ I AM HAVING FUN NOW!

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    Re: Adding bleach and muriatic acid at the same time?

    30 minutes, with filter running.

    Only add chemicals when there is circulation. Bleach and muriatic acid need at least 30 minutes in between them.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

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    triplets&quads's Avatar
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    Re: Adding bleach and muriatic acid at the same time?

    Thank you for responding! The pump is running and it has probably been 30 minutes since the bleach went in, so I will send the hubby out to add the acid.
    I AM LOVING THE SALT WATER AND THE BBB METHOD! 15 yr old 15,300 gal ABG, with 5 yr old liner, 5 yr old AquaTrol SWG, S220T Hayward Sand Filter, 1 1/2 HP 2 speed Hayward Pump, TF100 Test Kit, 11 yr old grandson, 6 yr old grand-quads AND 4 year old triplet grandsons! ~ I AM HAVING FUN NOW!

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    reebok's Avatar
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    Re: Adding bleach and muriatic acid at the same time?

    you can add acid right after the bleach or bleach right after the acid. there is no need to wait, just don't get a bucket and pour both of them into it. the pump should be running for any chemical additions. 30 minutes would be the wait time to start swimming.
    16x32 21,000 gallon in-ground exposed aggregate, 1.5hp pump, 120 sqft catridge filter, birdcage, solar panels, aquavac tigershark qc robot.

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    frustratedpoolmom's Avatar
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    Re: Adding bleach and muriatic acid at the same time?

    Keep in mind the PH will read a false-high when the FC is above 10, so it's very difficult and risky to adjust PH when shocking the pool....
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: Adding bleach and muriatic acid at the same time?

    Quote Originally Posted by reebok
    you can add acid right after the bleach or bleach right after the acid. there is no need to wait, just don't get a bucket and pour both of them into it. the pump should be running for any chemical additions. 30 minutes would be the wait time to start swimming.
    Bleach+acid=chlorine gas, one of the nasty poison gases used in WWI. Once they are in the water they are dilute enough to mix safely, like reebok says, although waiting a little while in between is never harmful. But don't store them near each other.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Re: Adding bleach and muriatic acid at the same time?

    Having done one right after the other, I'd suggest waiting at least a few minutes for the first to get mixed up and carried away by the return you are pouring it in front of. One on top of the other will create a few nasty bubbles that will make you wish you'd held your breath.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

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