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Thread: Just did my Borax/MA treatment to my Jetsetter

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    BravoRomeo's Avatar
    Join Date
    Jun 2012
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    Everett, WA
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    Just did my Borax/MA treatment to my Jetsetter

    Well this is great! Thanks to the advice I have read here, I just finished adding borates to my spa. Pool Calculator came up with 12 oz by volume of Borax and 6 oz of muriatic acid.

    Not having dealt with full-strength MA before, I took precautions: chemical resistant gloves, safety glasses, a deep breath, a muppet assistant and a white lab coat (kidding, but maybe next time to freak out my neighbors).

    First, I added half of the recommended MA to the tub, so 3 oz, with the jets going full blast. I then mixed up half the recommended amount of borax and hot spa water in a 5 gallon bucket. Before adding it, I noticed how there was now a bit more foaming... perhaps a combination of the now low pH and my naturally soft Cascade-fresh water (you're soaking in it, Madge). Anyway, adding the borax solution quickly put the foaming back to normal levels. Interesting!

    Rinsed, repeat. Same foam and then no-foam results. Waited a bit for it all to mix and tested the pH. A bit high, dinked around adding a touch more MA, then a touch more borax (uh oh, am I chasing the numbers?), and I'm back at the 7.5 we started with. I'll check it again before soaking tonight. I think 215 gallons mixes rapidly with the jets on, as evidenced by the appearance and disappearance of the foam.

    The MA was easy to deal with... if it fumed, I didn't notice as I held my breath while quickly dealing with it. I rinsed everything off in the circulating spa water, including the entire bottle of MA, which is now stored in its own 5 gallon bucket in the basement corner away from anything vulnerable. Maybe being over-cautious, but lots of reading here convinced me to be on the safe side of the line.

    Borate test strip shows somewhere around 50 ppm, which was what I was aiming for.
    Spa: 2001 Hot Spring Jetsetter, 215 gallon Dichlor/Chlorine
    When I'm not soaking, I just might be flying!

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    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
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    12,082

    Re: Just did my Borax/MA treatment to my Jetsetter

    Sounds good. Interesting about the pH dependence of the foam. Having the Calcium Hardness (CH) up at around 120-150 ppm can help to reduce the amount of foam.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    BravoRomeo's Avatar
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    Jun 2012
    Location
    Everett, WA
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    23

    Re: Just did my Borax/MA treatment to my Jetsetter

    Thanks, Richard. You are a tremendous resource here! Going to go have a soak and see how that may or may not have changed the feel of the water.

    Geoff
    Spa: 2001 Hot Spring Jetsetter, 215 gallon Dichlor/Chlorine
    When I'm not soaking, I just might be flying!

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