what is the best way to filter water out of gravel, sand and otton
Answer (1)
The best method is to layer them in this order (top to bottom):Gravel – traps large debrisSand – filters smaller particlesCotton – fine filtrationWater passes through all layers, getting cleaner at each level. This is a simple physical filtration method, but it won’t remove bacteria—boiling is still needed to make water safe to drink.
