Survive Any Disaster: How to Make a Life-Saving Charcoal Water Filter
Boil water for 10 minutes to kill pathogens before pouring it through your charcoal filter. Charcoal adsorbs chemicals, heavy metals, and other contaminants. Grind lump charcoal into a fine powder using a mortar and pestle. Finer grains provide more surface area to trap impurities. Layer the powdered charcoal between sheets of cloth, sand, and gravel to create your DIY project survival filter. Pour water through slowly to allow enough contact time. Replace the charcoal frequently, especially if the water …