Due to the increase in pollution by the industrial sector, Nepal has lost many of its clean and safe water sources. Therefore it is highly recommended to not drink from unknown sources. It should be boiled properly or you should buy a mineral drinking water. Due to drinking water, tourists might get sick and might ruin the holiday although the locals are seen drinking water directly from the tap or a stream, the habit is the one they are drinking so you have to be conscious about this. Getting infectious and harmful bacteria’s are the last thing you want to be getting while you trek on isolated areas of Nepal.