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Thread: adding Borax thru the skimmer on recirculate

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    Diver's Avatar
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    May 2011
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    adding Borax thru the skimmer on recirculate

    is it ok to add borax directly thru the skimmer bypassing the filter into the pool? mechanically i don't see it being very different from adding slurry in front of the returns. chemically it exposes the pump to higher PH. not sure if it's bad for the pump or not. any thoughts?
    26K In-ground Vinyl Pool | Hayward DE4820/SP0710XR50 filter | 1.125 HP Dual Speed Hayward Super Pump | Aquasol Solar

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    Casey's Avatar
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    Apr 2007
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    Re: adding Borax thru the skimmer on recirculate

    Why not just add it to the pool water?
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    JasonLion's Avatar
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    May 2007
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    Re: adding Borax thru the skimmer on recirculate

    We recommend adding by pre-dissolving and pouring in front of a return jet.

    The only real risk from borax in particular is that it can cause local metal staining, due to locally high PH before it has mixed in, but only in rare cases. Pre-dissolving and pouring in front of a return is the fastest way to get it to mix into the bulk pool water, thus avoiding any risk.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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