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Thread: Dry Membrane Shelf Life

  1. #1
    getsmart is offline Junior Member
    Join Date
    Aug 2008
    Posts
    2

    Default Dry Membrane Shelf Life

    I purchased a Watts ZRO-4 on ebay and the label on the Aquatec pump shows the pump was manufactured on 3/27/03. Everything is new and still factory sealed though the box shows its age from warehouse storage.

    I am assuming that the RO membrane in this system must be at least 5 years old. Do dry membranes have a shelf life for this long? Would it be safer just to replace the membrane? Does Filtersfast sell this one? Any help on this one greatly appreciated.


  2. #2
    Andy CWS is offline Moderator
    Join Date
    Dec 2006
    Location
    Port Clinton, Ohio, United States
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    750

    Default

    Check with the manufacturer. Many keep membranes in the fridge if not using them for extended periods of time. I suppose it keeps organics from developing.

    There is no way to tell if the membrane is at its minimum performance level by looking at it.

    Andy Christensen, CWS-II

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