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Thread: Can you use pH reducer in a hot tub?

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    Can you use pH reducer in a hot tub?

    I've got some pH reducer that I bought (and never used) in my very last pool store trip which I subsequently realized (thanks to TFP) wasn't good for my pool. But my in-laws have a hot tub and I was wondering if it could work for them? They use chlorine in their tub and the pH reducer container says it "lowers pH of swimming pool water". Is it safe to use in their hot tub?
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    Richard320's Avatar
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    Re: Can you use pH reducer in a hot tub?

    Quote Originally Posted by doncaruana
    I've got some pH reducer that I bought (and never used) in my very last pool store trip which I subsequently realized (thanks to TFP) wasn't good for my pool. But my in-laws have a hot tub and I was wondering if it could work for them? They use chlorine in their tub and the pH reducer container says it "lowers pH of swimming pool water". Is it safe to use in their hot tub?
    What's the label say is in it? Or can you post the exact name and brand?

    Odds are it's just dry acid packaged fancy and given a new name.
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    Re: Can you use pH reducer in a hot tub?

    It's Haviland pH Reducer.In the upper right corner of the label it says "Balancer" but I'll be darned if I can find anything actually stating what's in it. I haven't opened it yet, but it sounds like dry powder when I shake it. From Haviland's site, all I got was "Dry granular product for lowering the pH of pool water.
    Increases chlorine's ability to kill algae"
    15,400 gal, 16x32 vinyl rectangle (sport dig), Intelliflo VS, 240 sqft cartridge filter, Intellichlor IC40, Mastertemp 250, Dolphin supreme M4 cleaning, Pentair EasyTouch4

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    Re: Can you use pH reducer in a hot tub?

    As shown here, it's sodium bisulfate (aka "dry acid") so is OK to use to reduce pH in a hot tub.
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    Re: Can you use pH reducer in a hot tub?

    Quote Originally Posted by chem geek
    As shown here, it's sodium bisulfate (aka "dry acid") so is OK to use to reduce pH in a hot tub.
    You are awesome! Thanks!

    Brownie points for me with the wife and in-laws!
    15,400 gal, 16x32 vinyl rectangle (sport dig), Intelliflo VS, 240 sqft cartridge filter, Intellichlor IC40, Mastertemp 250, Dolphin supreme M4 cleaning, Pentair EasyTouch4

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