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Thread: In praise of Borates

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    astronaut888's Avatar
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    In praise of Borates

    Posted a couple of weeks ago about going ahead w/ borate (borax) addition

    Added enough per pool math to bring borates to 50ppm (although I have yet to test for specific levels)
    Well, a few days post addition I have noticed that my chlorine demand has dropped pretty dramatically.
    Enough so that I had to test a couple of times to be sure I wasn't doing something wrong.

    I was typically having to add around 90oz of 8.25% per day and it has now dropped to around 30oz per day.
    That is with super high heat and sunny days here too.

    The first day I noticed it was after a day FULL of people and even a dog or 2 jumping in randomly from time to time.

    I don't know if something else is contributing to the lower chlorine demand, as it was steady for weeks leading up to adding the borax.

    I also noticed that the water is exponentially easier on my eyes after the addition.

    Super happy to have done it.
    20K gal, IG vinyl, 1 1/2 HP Hayward Super Pump , 100lb sand, installed 2000 - new liner/filter/pump March 2014
    TF-100 test kit

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    Re: In praise of Borates

    Very Encouraging, I think I`ll try it next season. Thanks
    35900 inground, 1 1/2 hp superpump, Jacuzzi sand filter, barracuda 3 cleaner

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    bobodaclown's Avatar
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    Re: In praise of Borates

    Borates won't lower the chlorine demand. Can you post a full set of test results.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    mac.dblues's Avatar
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    Re: In praise of Borates

    Quote Originally Posted by astronaut888 View Post
    Posted a couple of weeks ago about going ahead w/ borate (borax) addition

    Added enough per pool math to bring borates to 50ppm (although I have yet to test for specific levels)
    Well, a few days post addition I have noticed that my chlorine demand has dropped pretty dramatically.
    Enough so that I had to test a couple of times to be sure I wasn't doing something wrong.

    I was typically having to add around 90oz of 8.25% per day and it has now dropped to around 30oz per day.
    That is with super high heat and sunny days here too.

    The first day I noticed it was after a day FULL of people and even a dog or 2 jumping in randomly from time to time.

    I don't know if something else is contributing to the lower chlorine demand, as it was steady for weeks leading up to adding the borax.

    I also noticed that the water is exponentially easier on my eyes after the addition.

    Super happy to have done it.
    Cool! I am just about to study up on borates and this lower chlorine usage is going to spur me on!

    P.S. Cool profile picture!
    Mac.Dblues and ProfessorDaisy's Lower Arkansas Pool Install
    Intex UltraFrame 20ft x 52in deep, 9,400 Gallons / Approx 78,500 lbs, Intex 1600 GPH, 14" sand filter, Hayward Dyna-Skim SP1091LX, Taylor K-2006, SpeedStir, Sample Sizer
    First Fill May 2014, Deck finished June 2014, Mods happening probably on a continuous basis. Stay tuned.....

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    astronaut888's Avatar
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    Re: In praise of Borates

    Quote Originally Posted by bobodaclown View Post
    Borates won't lower the chlorine demand. Can you post a full set of test results.

    pH 7.5
    CYA 50
    FC maintained between 4 and 7
    TA 80
    CC Zero

    Typically the FC was dropping to 3.5 or 4 most days - I check after sundown at about 9pm
    I was adding 90oz to bring to 6.5 or 7 and doing the same day in and day out for weeks - I keep a logbook of additions and it was pretty consistent like clockwork except on totally cloudy days where the demand would drop a bit
    I wanted to be pretty sure that everything was in check before adding Borax

    The only other difference I have noticed other than the affect on Cl demand is that my pH has wanted to drift a little bit higher than it was doing previously, but hasn't gotten above 7.8.

    Like I said - likely a coincidence - but, the numbers have certainly changed. For the better - at least for now (!)
    20K gal, IG vinyl, 1 1/2 HP Hayward Super Pump , 100lb sand, installed 2000 - new liner/filter/pump March 2014
    TF-100 test kit

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