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=== Water === | === Water === | ||
Backpackers always carry some [[water]] from the trailhead, to drink while walking. For short trips, they may carry enough to last the whole trip, but for long trips this is not practical. A backpacker needs anywhere from two to eight | Backpackers always carry some [[water]] from the trailhead, to drink while walking. For short trips, they may carry enough to last the whole trip, but for long trips this is not practical. A backpacker needs anywhere from two to eight liters or more per day, depending on conditions, making a water supply for more than a few days prohibitively heavy. Backpackers typically carry two to four liters of water depending on conditions and availability. Although some backpacking camps in heavily-used areas provide potable water, it must usually be obtained from lakes and [[stream]]s. | ||
Drinking and cooking water nearly always needs treatment with a filter or purifier to protect against bacteria and [[protozoa]] (see [[Potability of backcountry water]] and [[Portable water purification]]). If water is unavailable, or if the only water available is irreparably filthy, backpackers may need to carry large amounts of water for long distances. | Drinking and cooking water nearly always needs treatment with a filter or purifier to protect against bacteria and [[protozoa]] (see [[Potability of backcountry water]] and [[Portable water purification]]). If water is unavailable, or if the only water available is irreparably filthy, backpackers may need to carry large amounts of water for long distances. |