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  • I hope this isn't a repeat.

    I was just wondering what type of water filter system others thought was the best.

    Please note price on this subject is not an object. Just like gas masks and SCBA you can't skimp on quality.

  • #2
    Re: I hope this isn't a repeat.

    Originally posted by Duncan M View Post
    I was just wondering what type of water filter system others thought was the best.

    Please note price on this subject is not an object. Just like gas masks and SCBA you can't skimp on quality.
    Individual? Group? Size requirements? Do you want just a filter, or a purification unit (they're different)?
    [B][URL="http://www.assaultweb.net/forums/%5C%22http://www.assaultvest.com%5C%22"]
    [/URL][/B]

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    • #3
      Re: I hope this isn't a repeat.

      I too would like to know what is what with water treatment for a group of say 6
      I think I have read filtration goes down to about what?? 3 microns and that handles most stuff except viruses with which treatment units term purification- least that is what I read on a Katydyne(sp) box
      Need something that will treat a heck of a lot of water if one thinks long term and the filters are costly. Might be best to have more than one unit in case you lose/break it won't matter how many extra filters one has.
      I think for real large amounts settling tanks and rain water capture would be a minimum.
      Look forward to advice
      Mark
      REMEMBER:
      If you do settle in Texas and bear children, don't think we will accept them as Texans.
      After all, if the cat had kittens in the oven, we ain't gonna call'em biscuits.

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      • #4
        Re: I hope this isn't a repeat.

        Big Berkey/Brittish Berkfield

        White Candles for Filtration

        Black candles for Purification
        [B][/B]

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        • #5
          Re: I hope this isn't a repeat.

          I've got a Katadyn version of the Berkey. Slow to filter, but works.

          Problem is that REALLY long term, without a source for filters you're kind of screwed.

          For 6 people, the Berkey-style system is great for stationary. Other than that, there are larger Katadyn filters that can be used for "squad" sized operations, but again, you're talking only a couple-hundred gallons of filtration.

          Nearly all purification systems require chemicals of some sort...whether embedded into the filters or ceramic (a resin, usually) or a liquid chemical (bleach or other chlorine-based liquid). Iodine tabs can also be used, but leave the water tasting like...iodine. Mmmmmmmm.....

          I would recommend getting the smallest micron filtration you can that balances "size" and quantity. If you need purification beyond that, just buy a gallon of unscented bleach and add about 8 drops per gallon.

          http://www.thefarm.org/charities/i4at/surv/bleach.htm


          This URL has a "calculator" to figure the amount of bleach to add

          http://www.csgnetwork.com/h2oemergencypurifycalc.html


          Filtration removes sediment, gunk and non-viral contaminant except for giardia and cryptosporidium. SOME filters can remove this, but it needs to be 1 Microns or less (NSF rated for "cyst removal". Chemically treat or boil otherwise.

          http://en.wikipedia.org/wiki/Giardia_lamblia
          http://www.cdc.gov/ncidod/dpd/parasi...ht_giardia.htm
          [B][URL="http://www.assaultweb.net/forums/%5C%22http://www.assaultvest.com%5C%22"]
          [/URL][/B]

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          • #6
            Re: I hope this isn't a repeat.

            FOund the Berkey unit online and it looks rather promising-
            THe place I looked at them only mentioned the black filters and I assume this is what you meant by black candles (they do look like a candle) but no mention of the white ones-
            It mentioned that they could be cleaned with scotchbrite and continue to use them for years
            Here is the quaote-
            No need for expensive disposable filters. Black Berkey purification elements are re-cleanable. When the flow rate decreases simply brush the Black Berkey purification elements with a ScotchBrite pad under running water, reinstall and your system is again ready to purify water. Each durable and efficient purification element will last for up to 3,000 gallons (6,000 gallons per set of two) and provide years of efficient water purification. What's more unique is that the Black Berkey purification elements are self-sterilizing.

            THe small units use 2 and the larger ones use 8 and this increses the flow rate which makes sense-
            Seems to me it might be prudent to have 2 and only use 2 filters at a time with more in reserve.
            Comments.
            REMEMBER:
            If you do settle in Texas and bear children, don't think we will accept them as Texans.
            After all, if the cat had kittens in the oven, we ain't gonna call'em biscuits.

            Comment

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