What is the risk of water without filtration?
Before choosing your outdoor water filter, you need to understand the risks associated with water for travelers. The water in rivers, lakes and wells can be polluted by human or animal excrement or by sewage from homes. However, except when trekking, you will mainly drink tap water during your trip. It is controlled almost everywhere in the world, but in developing countries, these controls as well as the treatment and distribution facilities are sometimes deficient. If the water is contaminated, the main risk is to catch a more or less violent “tourista”: diarrhea, vomiting and stomach cramps. It may be due to the presence of dangerous micro-organisms (bacteria, etc.).