>>324230I just bought one of these at rei for 20 bucks out the door. good for 100,000 gallons, filters the shit out of bacteria and parasites.
for frame of reference, if you used it to filter a gallon a day, every day, it would be effective for 273 years.
though my captcha just refreshed to Diarrhoea uvestre, so I don't know what that means...