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Water filtering: Difference between revisions
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== Link dump == | |||
=== Small scale DIY === | |||
Charcoal/Sand/Gravel in a plastic drink bottle | Charcoal/Sand/Gravel in a plastic drink bottle | ||
https://waterfilterguru.com/how-to-make-a-homemade-water-filter/ | https://waterfilterguru.com/how-to-make-a-homemade-water-filter/ | ||