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Purifying Water with a Natural Filter — Charcoal, Sand & Gravel
Karen

Ṣẹ́dá nipasẹ̀

Karen

19. Oṣù Kẹta 2026SE
73
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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.
Olùbẹ̀rẹ̀
30-45 minutes

Ìlànà

1

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

Make Charcoal

Burn hardwood until fully black. Smother with sand to stop combustion. Cool, then crush to pea-sized pieces. ~2 cups needed.

Tools needed:

Fire StarterFire Starter
Utility KnifeUtility Knife
3

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

Materials for this step:

ContainerContainer1 ẹyọ
Tinder BundleTinder Bundle1 ìkúnwọ́
GravelGravel2 ife
Fine SandFine Sand3 ife
Charcoal (Crushed)2 ife
4

Filter & Boil

Pour water slowly. Discard first dark batch (charcoal dust). By third pass, water runs clear. ALWAYS boil 1 minute before drinking.

Tools needed:

Fire StarterFire Starter

Àwọn ohun-èlò

5

Àwọn irinṣẹ́ tó nílò

2

CC0 Àgbègbè Gbogbogbò

Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.

Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.

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