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Thread: Bromine testing

  1. Back To Top    #1

    Join Date
    Apr 2016
    College Station, TX

    Bromine testing

    I'm having a hard time getting a grip on what's going on with my spa so I bought some r-0872 to go with my K-2006C kit components. I thought the r-0872 would work with the r-0870 powder to show Bromine (and not chlorine). After adding bleach and letting it mix then testing three times with OTO, r-0871 and r-0872, the results all came back the same. So out of curiosity, I looked up the msds from Taylor on the two reagents. I don't know much about chemistry but saw someone mention doing that before on here. These reagents appear to be identical to each other. Iron ethylene diammonium sulfate and deionized water.

    Is there a way to test if there is bromine or bromide present in the water without showing when there is chlorine present? Or does it matter? I was shooting for having a bromine spa but I believe all of my sodium bromide may be used up and all of my oxidizer is just chlorine.
    Intex 16'x32'x54" 17Kgal AGP since 2014. Sand filter, Hayward skimmer, home built 10'x15' deck and stairs, solar heater. High TA tap water, moderate rainfall, weekly use. Treated with 10% bleach, MA and some dichlor initially. Soon to add borates.
    Taylor K2006C
    Future projects - automatic chlorine pump, online pool sensors, better heater, IGP (maybe)

  2. Back To Top    #2

    Re: Bromine testing

    The reagents are the same, just different concentrations. They react identically to chlorine or bromine. No way to tell if you have bromide in the water. However, you can always add more bromide.
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