Water is arguably the most crucial aspect to survival. The body can go without food for weeks, but can only last without water for a few days. Even that's pushing it. We can pack as much water as we want when we enter the wilderness, but we have to be able to prepare for the unexpected. Our water supply could be compromised or we could simply run out of it if we're forced to spend more time outside than we expected.

As a result, it's critical for any survivalist to learn how to make a clean water supply. This might include collecting rainwater, but then we would have to rely on the weather for fresh water. Another option is to use saltwater. The process only takes a few materials and can be done in the middle of the woods.

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