"The World Health Organization (WHO) attributes 80% of all travel diseases to contaminated drinking water. Don't let contaminated drinking water spoil your trip. Avoid tap water and ice cubes anytime the water quality is uncertain - even bottled water can be questionable, when available. According to WHO, almost half of all travellers suffer from some form of diarrhoea while en-route.
Good health while travelling starts with travel preparation - and the right Katadyn product for safe drinking water.
Because you never know what's in the water, it makes sense to always protect yourself with a quality water system. A pristine stream may be safe one day and contaminated the next. It all depends upon what's happening upstream. Microorganisms generally come from human and animal waste and are spread by rain and run-off. The EPA reports that 90% of the world's fresh water supply is contaminated.
"We highly recommend treating water from every source in the backcountry. You don't know what is upstream - not just people but animals - and you can get infected."
Center for Disease Control and Prevention, U.S. Government"