What does grass, charcoal, and sand does in a home made water filter?
Stan Treivus asked:
what does grass do to dirty water? how does it clean the water?
what does charcoall do to dirty water? how does it clean the water?
what does sand do to dirty water? how does it clean the water?
Corey
what does grass do to dirty water? how does it clean the water?
what does charcoall do to dirty water? how does it clean the water?
what does sand do to dirty water? how does it clean the water?
Corey
June 30, 2006 - 11:40 AM Comments: Closed
