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Thread: MPS - How does it work?

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    UnderWaterVanya's Avatar
    Join Date
    Jun 2012
    Mint Hill, NC

    MPS - How does it work?

    I'd like to know more about potassium monopersulfate, MPS. I don't plan on using it but I am curious what the chemistry of it is and how it behaves in a chlorinated pool. I realize liquid chlorine is cheaper and easy to use - and I'm not interested in contrasting them except in the context of understanding how the MPS works and what it does and doesn't do that chlorine does. Oh and I am aware it can be used to reactivate bromine pools chemistry (as can many other oxidizers including chlorine).

    I understand that a lot of misinformation exists in the world - particularly where pools and products intersect. However the statements made by this person about MPS are really at odds with what I think I know about MPS:


    My understanding is that MPS doesn't clear up or remove or act upon chloramines at all; as I understand it, it just kills off the kinds of organics that might result in more chloramines in the pool. But I'd like more clarification of the mode of action etc.

    If I overlooked a thread - please point me there.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: MPS - How does it work?

    Take a look at this thread, and chem geek's discussion therein:
    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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