1. Sahada Akter

2. Design Brief A water filtration unit is necessary for everyone to have in their homes. It is often said that people such as children or pregnant mothers need it the most, but in reality it is vital for every individual. There are many contaminants in water that we are not aware of. These contaminants harm our bodies and health. With the filtration unit we can remove the harmful substances and drink clean water. Once my filter is complete, I hope to use it in my own home with my family. I can teach my relatives and friends what I have learned as well and this will benefit them.

3. Step One Build your filtration system using a 2 liter soda bottle and one bucket. Make three holes on the bottom of the bottle. Do the same for the top of the bucket. Stack the bottle on top of the bucket so that the holes match up. The bucket will hold the filtered water.

4. Step Two Fill the bottle with layers of sand, charcoal and gravel almost to the top. First put a layer of gravel, then charcoal, and lastly sand.

5. Step 2 With the bottle AWAY from the bucket, pour water into the top and let it run through. You will notice the water will have the color of charcoal to it. Keep running water through each layer until the water runs through clear.

6. Step 3 Place the bottle on top of the bucket’s lid (matching the holes up) Pour water into the bottle and let it filter through into the bucket.

7. …That’s all you will need for your water filtration unit!

8. RESULTS Filter: gravel, charcoal, sand

9. 2 liter bottle on bucket with 3 corresponding holes, cheesecloth filter

10. Clean water!

11. Proof: Tube on the right-Pershing tap; Tube on left-My filtered water Mine has less copper!

12. Future Engineer Sahada Akter