Survival skills
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise.
Water supply and sanitation in Tanzania
Continuity of supply. Of the twenty Urban Water Supply and Sanitation Authorities (UWSSAs) that operate in Tanzania, three are able to provide continuous water supply (Arusha, Songea and Tanga). In eleven other cities water is supplied for at least 19 hours. In Babati and Mtwara there is water supply for 12 hours per day. The lowest figures (5 hours per day) come from the cities of Kigoma, Lindi and Singida. In Dar es Salaam water is supplied on average for 9 hours per day.