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Water Collection

How to find and collect water in the bush

Access to good drinking water is essential for human life. The human body can last for several weeks without food but only a few days without water. In developed countries, most urban-dwellers take potable water for granted – turn on a tap and water is there – but outside of cities, and especially in remote areas, reliable water sources are precious.
Not all campsites have water, so walks must be planned such that everyone in the group carries sufficient water supplies or collects water from reliable sources en-route. Hence, managing water on a bushwalk requires adequate research and planning regarding the itinerary and gear requirements (e.g. water containers to collect and carry enough water), the expected pace of the group, campsites and water sources.
It’s common that daywalkers carry all their water supplies, but since every extra litre of water adds an extra kilo of weight, it’s extremely challenging to take sufficient water supplies for more than a day or two. Overnight walkers ideally select campsites close to water or organise water drops at regular intervals along the track.
The amount of water an individual needs to carry depends on the distance to the next reliable water source, the effort to get there, the air temperature, and individual needs, but as a general guideline, when walking in moderate spring conditions allocate half a litre for every hour of walking. On hotter days, ideally aim to hit a water source towards the middle of the day. On overnight trips where bushwalkers don’t expect to find additional water supplies, they tend to carry 4-6 litres of water.
Over time, individual water needs will become known, and it becomes easier to estimate water requirements for particular tracks and conditions.

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