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Thread: Adding CYA and Borax

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    Adding CYA and Borax

    Do I need to add cyanuric acid before borax or not at all? I drained and repainted epoxy. in-ground 15K pool sand filter, tab chlorinator in line. North TX pool pool is partially shaded by huge oak tree

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Adding CYA and Borax

    Without test results, we cannot tell if you need borax to raise your pH. You will certainly need CYA regardless.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    UN1017's Avatar
    Join Date
    May 2012
    Sacramento, CA

    Re: Adding CYA and Borax

    Borax has two functions. 1. Like duraleigh said, borax is used to adjust levels but we have see if your levels require it. 2. It looks like you chose to do optional borates back in 2011.

    The optional borates is just that, optional. You can do it again if you want but it's not required.

    On a side note, since you are using a tab feeder then you are adding CYA whether you want to or not. Eventually it will build up to an undesirable level.
    15'x30' IG - Roman-style - 14K - Pebble Fina Classico
    Filter: Jandy CL460 Pump: Jandy Stealth SHPF1.5 SWG: Jandy AquaPure 1400 Cleaner: Jandy RayVac Test Kit: TF-100 w/SpeedStir

    Chlorine/CYA Chart----Extended Test Kit Directions----SLAM

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Adding CYA and Borax

    I'd get that pool balanced and give it a couple weeks to get to know the chemistry before adding boartes. It will mean one less variable to worry about.

    Sort of like having a honeymoon before you add kids to the mix.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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