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Thread: Pool calculator for bromine spa?

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    Pool calculator for bromine spa?

    Just wondering, does the chlorine calculator work the same if using bromine in my spa? I would like to use the 12.5% chlorine that I use in my pool to oxidize the bromine in my spa, but I wasnt sure that if the calculator tells me X amount will raise free chlorine by Y, that Y would translate over to free bromine. Or do I multiply Y by 2.25 to get the the new bromine reading?

    Thanks guys!
    Wes
    1) In-Ground pool with vinyl liner
    - ~25,000 gallons
    - Sand Filter
    - 1 HP pump
    - BBB method working perfectly since 2010
    2) Four Winds Honolulu Spa
    - ~450 gallons
    - 3 step bromine

  2. Back To Top    #2

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

    Re: Pool calculator for bromine spa?

    The bromine reading is 2.25 times the chlorine reading. So just divide your current and desired bromine readings by 2.25 to enter the equivalent FC numbers into The Pool Calculator. Likewise, when seeing the effects of adding chemicals so getting an FC amount, multiply by 2.25 to see the equivalent bromine level.
    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"

  3. Back To Top    #3

    Pool calculator for bromine spa?

    Thanks for the clarification! Happy long weekend!
    Wes
    1) In-Ground pool with vinyl liner
    - ~25,000 gallons
    - Sand Filter
    - 1 HP pump
    - BBB method working perfectly since 2010
    2) Four Winds Honolulu Spa
    - ~450 gallons
    - 3 step bromine

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