Background/Tutorial/FAQ

Motivation and Problem

The motivation for the project is that farmers in Thailand do not have access to clean water while working in the field during the day. They have a large filter in their village, but it is difficult for them to have to go all the way back to the village to get water while working do the day. They will also expel a lot of energy and time walking back to the village.

The main problem with the drinking water is the dirt in it. Although there is harmful bacteria, it is not terrible.

Background Information 

The filter we designed is made up of two layers of a special cloth with small enough pores that most bacteria cannot fit through. In between the two layers will be activated carbon that will catch all bacteria that makes it through the first layer. The second layer of the cloth filter is to hold the carbon in place.

Tutorial

Step 1: Take one of larger polypropylene bottles and cut off the top, label this part P1.

Step 2: Take the second polypropylene bottle and cut off the bottom, label the bottom part P2.

Step 3: Take the smaller polypropylene bottle and trace out its circumference on P2 from step 2.

Step 4: Cut the trace out on P2.

Step 5: Now take the smaller polypropylene bottle and cut it to ⅔’s the size of P1, label this part P3.

Step 6: Cut holes in the bottom of P3 (this is suppose to be a grating) .

Step 7: Repeat step 2-4 for a third large Polypropylene bottle, but label the part P4.

Step 8: Take P2 and P4 (identical parts) and glue them to the inside of P1 so that they are level to P1s bottom. Glue the first 2/3’s from the bottom of P1 and the second even with the top of P1.

Step 9: Take P3 and punch fingerprint sized holes in the sides of the top ⅓ of the bottle (precision is not that important)

Step 10: Now insert P3 into the holes of P2 and P4 so that its top is even with P1 and P4.

Step 11: Insert already made filter into P3.