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Sawyer filter: does it ever need replacement?


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  • #1277565
    Casey Balza
    Member

    @equals

    Does the Sawyer inline 3 way filter ever need to be replaced? I understand it has a 1,000,000 gallon guarantee. So if I took this filter on a through hike would I ever have to replace it? Would back flushing in the field be good enough to keep the filter from clogging?

    http://www.rei.com/product/801824/sawyer-3-way-inline-water-filter

    #1765575
    Rick Dreher
    BPL Member

    @halfturbo

    Locale: Northernish California

    Hi Casey,

    It is field-backflushable and so long as it's not too badly clogged I presume it will soldier on for a long time. Filtering, say, glacier flour from the slopes of Rainier or Colorado River murk might eventually render it unusable until you get to high-pressure water for a more thorough cleaning.

    I don't know anybody who's sent one in for replacement/repair, so can't verify their guarantee. My feeling is with adequate care and no truly awful source water, the filter's life is quite long. The biggest threat could be mildew from improper long-term storage.

    Sawyer's instructions are available on line for more on backflushing.

    Cheers,

    Rick

    #1765577
    Aaron Benson
    Member

    @aaronmb

    Locale: Central Valley California

    I've read that as long as it is properly maintained (back flushed) the life-span is about infinite (providing it doesn't freeze). From what I understand, the "1M gallons" was a legal thing because they couldn't say it was good forever. I don't know if all that's true, but I 'think' I read that here – which must make it right. Right? ;)

    In the Reviews area here, there may be some good reading for you: http://www.backpackinglight.com/cgi-bin/backpackinglight/reviews/display_reviews?forum_thread_id=5536&cat=Hydration%20-%20Water%20Treatment&cid=55

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