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Thread: Bromine to chlorine, back to bromine?

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    Bromine to chlorine, back to bromine?

    I switched from bromine to chlorine a couple of years ago. I have never been able to keep the chlorine levels up and I have had problems with algae. After doing some reading, I guess it wasn't a smart thing to do.

    My brominater cracked and it was so expensive !! I am considering going back to bromine. Can it be easily done? Any other suggestion?
    @23,000 gallons
    Cartridge. Filter
    In ground
    Vinyl liner
    Buffalo, New York

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    linen's Avatar
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    Re: Bromine to chlorine, back to bromine?

    Welcome to tfp, Kathy G.

    The problem with using Bromine in a pool is can't be stabilized against sunlight. With that said, it can be used in pools, but it will mean higher chemical costs.

    Maybe we can help with your difficulty keeping your chlorine levels "up". I you would like post a full set of test results for us to look at. See: http://www.troublefreepool.com/pool-...efore_you_post
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Bromine to chlorine, back to bromine?

    Thanks, I will. We are still about three weeks from opening the pool.
    @23,000 gallons
    Cartridge. Filter
    In ground
    Vinyl liner
    Buffalo, New York

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    Re: Bromine to chlorine, back to bromine?

    I think if you give it a chance you will find that using a proper test kit and learning/getting advice here is the best way to go

    Aaron
    [ Vogue Vectra 24' AG | Hard plumb: Hayward Power-Flo Matrix 1HP 2-speed, 27" sand filter & Pentair MiniMax 100 NG | Taylor K-2006 | Central IL ]
    Powered by: TFP, PoolMath & TFTestkits

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    Re: Bromine to chlorine, back to bromine?

    If you were on bromine, then you're still on bromine. Any chlorine added to a pool containing bromide will convert the bromide to bromine and the chlorine to chloride.

    Since bromine is not stabilized by cyanuric acid, the sunlight will burn out the bromine at a pretty good rate.

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    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
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    Re: Bromine to chlorine, back to bromine?

    Quote Originally Posted by JamesW
    If you were on bromine, then you're still on bromine. Any chlorine added to a pool containing bromide will convert the bromide to bromine and the chlorine to chloride.
    I have never dealt with bromine pools/spas, but I am not sure that is true in this case

    Since this pool has had no bromine added for a couple of years (Kathy, how many exactly?), according to JasonLion in this post http://www.troublefreepool.com/chlor...2.html#p189418, if no bromine has been added for a couple years, the bromine may be gone now (assuming this is an outdoor pool). If Kathy used bromine tablets, it seems that bromine disappearing from the pool might take longer (Kathy, did you use tabs?).

    As to how to tell for sure it has no bromine left, I do not know for sure, but doing some searching on here suggests you might know by allowing your measurable FC go to 0 ppm, then dosing with MPS, then testing using the FAS/DPD test and if there is some measurable Free Bromine, then the bromine bank still exists?

    Again, I do not know for sure...hopefully others will comment.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Bromine to chlorine, back to bromine?

    I have not added any bromine for at least the last two summers, maybe even three. This is an outdoor pool. Once I open the pool, I will take my water into the local pool store for testing.
    @23,000 gallons
    Cartridge. Filter
    In ground
    Vinyl liner
    Buffalo, New York

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    Re: Bromine to chlorine, back to bromine?

    Kathy, I would urge you to order a test kit from TFTest Kits and read Pool School for the next 2 weeks. By that time, you'll be ready to open your pool. With your new test kit, new education from Pool School, and 24/7 access to the expert mods and contributors (myself excluded other than to recommend a test kit) on this site, you will soon have a trouble free chlorine pool and never look back. Good luck, and WELCOME to TFP!
    POOL: Intex ultra new in 2014 (32 x 16 x 52) (seasonal; on concrete pad covered with 1.5" extruded or whatever foam insulation sheets - ugly, but comfy); added a through-wall skimmer; I add salt for feel. EQUIPMENT: Pentair SuperFlo pump (1HP, 2SPD); Pentair cartridge filter (200 sq. ft); Pentair MasterTemp natural gas heater (400,000 btu) Climate/Location: Eastern Nebraska

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