silenthunterstudios
Slipjoint Addict
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- Feb 2, 2005
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I'd like to get a small water filtration/purification kit to store in a 16 and 32 oz Nalgene bottle. Tablets, filters, drops. What should I get?
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Water filtration/purification
- Thread starter silenthunterstudios
- Start date
- Joined
- Jul 6, 2010
- Messages
- 807
Sawyer makes an inline .1micron filter (won't filter virus)...check Adventure Safety Products that should fit inside....when I was looking for a hurricane backup, most recommended the chlorine dioxide (ClO2) tabs over iodine based products
Yes Sawyer make a Nalgene type bottle with either a 5 log filter or a 7 log purifier depending upon your needs or wants. The bottle set up can be used with or without the filter if you don't want to mess with a filter (assuming you purify the bottle in/outside first!)
They both work but you'll suck your face off to get a decent drink from the purifier. It is is possible obviously to get a drink from the purifier but it a slow process. The filter is much easier. So if you only need to filter and not purification then it is a good set up. I have both. I do use the purifier with a 5 gal bucket gravity feed system which is portable, realtively inexpensive and highly effective. For it I'm in no hurry so I let it slowly refill my Nalgene bottles, Camelbak or whatever...
If you buy the Nalgene type bottle set up from them, then you can take the filter or purifier out and use it on a 5 gallon gravity fed system like I made. They sell a 5 gallon kit but you can make the same thing at home with a couple inexpensive parts from a hardware/plumbing store and then have double duty. I try to buy gear that gives me maximum flexibility rather than highly specialized "one-time" gear.
I've been very pleased with my double duty set up. I find they last an extremely long time - pretty much indefinitely if you maintain it well and don't let it freeze etc...and when the filter or purifier gets too slow (plugged with bio gunk) I just reverse the flow or it comes with a flush adapter so you can hook up a garden hose and flush it out backwards. Once flushed it is reset to be used again. Sawyer puts a "gallon count number" on their product because customers demand this (they/we expect some expiration) but in reality there is no limitation as these units can be easily and quickly flushed and safely re-used over and over again - as long as we don't let them freeze etc. The one key is to pre-filter the larger "see-able" gunk" first so it doesn't plug the filter. I use my tee-shirt if I have too as a pre-filter for my bottle if I don't have anything else more sophisticated with me at the moment. This will give you much more mileage. But again, if it plugs, you've just got to be patient or flush it out at your earliest opp.
These filters/purifiers are the same technology used for Kidney Dialyses so this is high end stuff!
Nice thing is no batteries, no expiration, no drops to count, no nothing...a life long investment - once!
They both work but you'll suck your face off to get a decent drink from the purifier. It is is possible obviously to get a drink from the purifier but it a slow process. The filter is much easier. So if you only need to filter and not purification then it is a good set up. I have both. I do use the purifier with a 5 gal bucket gravity feed system which is portable, realtively inexpensive and highly effective. For it I'm in no hurry so I let it slowly refill my Nalgene bottles, Camelbak or whatever...
If you buy the Nalgene type bottle set up from them, then you can take the filter or purifier out and use it on a 5 gallon gravity fed system like I made. They sell a 5 gallon kit but you can make the same thing at home with a couple inexpensive parts from a hardware/plumbing store and then have double duty. I try to buy gear that gives me maximum flexibility rather than highly specialized "one-time" gear.
I've been very pleased with my double duty set up. I find they last an extremely long time - pretty much indefinitely if you maintain it well and don't let it freeze etc...and when the filter or purifier gets too slow (plugged with bio gunk) I just reverse the flow or it comes with a flush adapter so you can hook up a garden hose and flush it out backwards. Once flushed it is reset to be used again. Sawyer puts a "gallon count number" on their product because customers demand this (they/we expect some expiration) but in reality there is no limitation as these units can be easily and quickly flushed and safely re-used over and over again - as long as we don't let them freeze etc. The one key is to pre-filter the larger "see-able" gunk" first so it doesn't plug the filter. I use my tee-shirt if I have too as a pre-filter for my bottle if I don't have anything else more sophisticated with me at the moment. This will give you much more mileage. But again, if it plugs, you've just got to be patient or flush it out at your earliest opp.
These filters/purifiers are the same technology used for Kidney Dialyses so this is high end stuff!
Nice thing is no batteries, no expiration, no drops to count, no nothing...a life long investment - once!
Last edited:
- Joined
- Jul 27, 2003
- Messages
- 5,685
Only one I would trust my safety with:
And I have used numerous times while camping/canoeing:
http://www.lifesaverusa.com/
http://www.youtube.com/watch?v=28n8l0cwsGM
And I have used numerous times while camping/canoeing:
http://www.lifesaverusa.com/
http://www.youtube.com/watch?v=28n8l0cwsGM
- Joined
- Feb 8, 2004
- Messages
- 4,172
Good question; the easy answer is just drop in some Micropur tablets or my preference for iodine is Polar Pure (not sure if it would fit the smaller 16oz bottles.
I have Sawyer’s compact in-line filter that I’ve only used a few times and really like (I do have their larger gravity filters which I can fully recommend), but it needs the non-potable water bag to hold the water for filtration. It can be used directly or set up to gravity feed in the Nalgene bottle, and can be rolled up with the non-potable water bag and fit inside a 32oz Nalgene.
Having a steel/titanium nesting cup is still a good idea for a complete package as it will allow you to boil water if you have the time and resources for a fire.
Aqua Mira makes the Frontier Pro…a great little emergency or backup filter that can easily fit in a pocket or a Nalgene. What I like is that you can use it like a straw and drink directly from the water source or attach it to plastic water bottles (standard threads including the military flask, Nalgene flask or Platypus containers) and squeeze for water. It’s not the best, but for an individual, it’s a good backup or emergency filter.
I really like that Lifesaver bottle…something to consider as it works on similar technology as Sawyer however it looks like it uses air pressure (via the pump) to force through the membrane as opposed to just gravity or squeezing.
Tablets and iodine are the simplest, but often require pre-filtration for better effectiveness and a wait-period for complete purification. You often have to wait an hour or more depending on the water source and temperature…another consideration.
ROCK6
I have Sawyer’s compact in-line filter that I’ve only used a few times and really like (I do have their larger gravity filters which I can fully recommend), but it needs the non-potable water bag to hold the water for filtration. It can be used directly or set up to gravity feed in the Nalgene bottle, and can be rolled up with the non-potable water bag and fit inside a 32oz Nalgene.
Having a steel/titanium nesting cup is still a good idea for a complete package as it will allow you to boil water if you have the time and resources for a fire.
Aqua Mira makes the Frontier Pro…a great little emergency or backup filter that can easily fit in a pocket or a Nalgene. What I like is that you can use it like a straw and drink directly from the water source or attach it to plastic water bottles (standard threads including the military flask, Nalgene flask or Platypus containers) and squeeze for water. It’s not the best, but for an individual, it’s a good backup or emergency filter.
I really like that Lifesaver bottle…something to consider as it works on similar technology as Sawyer however it looks like it uses air pressure (via the pump) to force through the membrane as opposed to just gravity or squeezing.
Tablets and iodine are the simplest, but often require pre-filtration for better effectiveness and a wait-period for complete purification. You often have to wait an hour or more depending on the water source and temperature…another consideration.
ROCK6
- Joined
- Jun 12, 2002
- Messages
- 204
Have you looked into millbank bags as a prefilter? They roll up when not in use, and make chemicals more effective by removing most particulate matter. We used to carry them in the army. Only problem is that they take a while to work.