Are there any schematics for an inexpensive (less than S$5), reusable water filter? Answered
I need a water filter that can be built easily, with minimal skill needed, with easily obtainable materials, cost less than S$5 (Singapore dollars), and must make the water look clean (make the water clear) and odorless whether on the 1st attempt or 100th attempt. Does anybody know how to make one and explain the concept behind it? The concept should be understandable by Secondary 1 students, or Grade 7 students.