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.
Hockerton Housing Project
Drinking or potable water:Drinking water is captured from the conservatory roofs in copper pipes, which are slightly antiseptic, and stored in a tank that holds at least 100 days worth of drinking water. The water is passed through 3 filters before it enters the homes: a five-micrometre string filter, a carbon filter and then a UV-light filter which kills bacteria and viruses.