10-05-2006, 08:21 PM
most of those purifying straws, or bottles with one built in are good for 150 bottles (or is it gallons) It would end up being about 35-50 cents a bottle for the filter, but you wouldn't have to store bottles of water. That's still half or better than bottles. Be concerned about life expectancy once you start to use them.
I don't know too much about them, but there are a number of ones available. Look more towards the filtration aspect than the purification aspect. Some of the ultra purification ones have a short life span and a much lower max quantity. But if I were in a survival situation where I didn't know how many water buffalo and natives were peeing and crapping upstream....
The sawyer one looks good
I saw it in a few mail-order/on-line surplus and military supply places as well. In a catalog about 12-18 months old, it was $30. The Sawyer 6/4. 32 ounces, and 250 gallons life. (1000 fills is pretty damn good) Cleaner water will extend the filter life, and nasty will cut it way down.
I don't know too much about them, but there are a number of ones available. Look more towards the filtration aspect than the purification aspect. Some of the ultra purification ones have a short life span and a much lower max quantity. But if I were in a survival situation where I didn't know how many water buffalo and natives were peeing and crapping upstream....
The sawyer one looks good
I saw it in a few mail-order/on-line surplus and military supply places as well. In a catalog about 12-18 months old, it was $30. The Sawyer 6/4. 32 ounces, and 250 gallons life. (1000 fills is pretty damn good) Cleaner water will extend the filter life, and nasty will cut it way down.