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Thread: Is there any CYA in Leslie's Fresh n Clear Non-Chlorine shock?

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    Is there any CYA in Leslie's Fresh n Clear Non-Chlorine shock?

    Does anyone know if there is any CYA in Leslie's Fresh n Clean non chlorine shock? Thanks
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    domct203's Avatar
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    Re: Is there any CYA in Leslie's Fresh n Clear Non-Chlorine shock?

    Quote Originally Posted by Clyde View Post
    Does anyone know if there is any CYA in Leslie's Fresh n Clean non chlorine shock? Thanks
    I do not believe so as it is not a sanitizer and doesn't add FC, it is an oxidizer usually used to activate a bromine pool, or eliminate high CC's. It is MPS (monopersulfate) and is generally not needed in an outdoor pool.

    http://www.troublefreepool.com/threa...Clear-Question

    I do know for a fact that there is zero CYA in liquid chlorine (aka bleach).

    What is your plan for the Leslies product that cannot be addressed with liquid chlorine?

    Dom
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    Mod Squad pooldv's Avatar
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    Re: Is there any CYA in Leslie's Fresh n Clear Non-Chlorine shock?

    It is probably

    MPS
    KMPS
    Potassium Monopersulfate
    Potassium Peroxymonosulfate
    A non chlorine oxidizer or 'shock'. It is acidic and will cause lower pH and TA. It adds sulfates to the water. Will not break down CC but helps prevent it from forming when used on a regular basis. It will interfere with TC and CC tests unless special reagents are used in testing since it WILL test as CC! A good choice to use in indoor pools that are not exposed to sunlight but really has no advantage in an outdoor pool. It is only an oxidizer and NOT a sanitizer and should not be used as such.
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