Hydration and Water Treatment
A common starting point is about half a liter per hour in mild conditions, more in heat or at altitude. Study maps for reliable sources; when dry, plan caches or start heavy. In Grand Canyon heat, I once carried four liters and finished grateful for every drop.
Hydration and Water Treatment
Squeeze filters are light and fast; backflush regularly to maintain flow. UV pens and chemical treatments are great backups. In areas with viral risk, choose a purifier rated for viruses. Always carry a failsafe method—purification tablets weigh almost nothing and can save a trip.