ARTE
BELEZA E BEM-ESTAR
ARTESANATO
CULTURA E HISTÓRIA
ENTRETENIMENTO
MEIO AMBIENTE
COMIDA E BEBIDAS
FUTURO VERDE
ENGENHARIA REVERSA
CIÊNCIAS
ESPORTES
TECNOLOGIA
TECNOLOGIA VESTÍVEL
Purifying Water with a Natural Filter — Charcoal, Sand & Gravel
Build a three-layer water filter from charcoal, sand, and gravel. Important: always boil filtered water for 1 minute — filtration alone does not kill all pathogens.
Iniciante
30-45 minutes
Instruções
1
1
Filter Layer Diagram
Filter Layer Diagram
Water flows top to bottom through three layers: charcoal (chemical filtration) → sand (physical filtration) → gravel (structural support). Always boil after filtering.
Flow
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2
2
Make Charcoal
Make Charcoal
Burn hardwood until fully black. Smother with sand to stop combustion. Cool, then crush to pea-sized pieces. ~2 cups needed.
Ferramentas necessárias:
Fire Starter
Utility Knife3
3
Assemble Filter
Assemble Filter
Container (bark cone, hollow log, or cut bottle). Grass plug at drain. Layer: 5-8cm gravel, 8-10cm sand, 5-8cm charcoal, thin gravel cap on top.
Design
Cross-section: labeled layers with measurements
Materiais para este passo:
Container1 peça
Tinder Bundle1 punhado
Gravel2 xícaras
Fine Sand3 xícarasCharcoal (Crushed)2 xícaras
4
4
Filter & Boil
Filter & Boil
Pour water slowly. Discard first dark batch (charcoal dust). By third pass, water runs clear. ALWAYS boil 1 minute before drinking.
Ferramentas necessárias:
Fire StarterMateriais
5- 1 punhadoReferência
Ferramentas necessárias
2- Referência
- Referência
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ClayFrequently used with this build's materials
ForgeFrequently used with this build's materials
AnvilFrequently used with this build's materialsCC0 Domínio Público
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