Week 3 Post 1

We have gathered all of our materials needed for the filter except the gravel (which we probably will not be using). The group has timed how long it takes water to pass through 1-inch and 2-inch thick layers for each material we're planning to use.  The results are as follows:

We cut off the bottom half of an empty water bottle and took off its cap.  We then cut some metal wiring mesh from the air filter and placed it over water bottle's entrance (as seen in the image from Google below) and secured it there with a zip tie.  We then turned the water bottle upside down.  This is all to prevent the filtering materials from falling out through the entrance while water is being poured on top of them.  The clean water comes out through the metal mesh wiring. 

 

Each material was put into the bottle in 1-inch or 2-inch layers had 1 cup of water poured on them.  They were timed from the moment the water started to be poured up until the last drops of water passed through the metal mesh.