Following the instructions in the video below I made an emergency water filter in front of my AP Language class this morning. Students in AP Lang have been working on a year-long project called CRAVE, during which they investigate an issue they are passionate about and work to answer a research question. My research question has been “How can my family live more lightly on the earth?” and in order to answer it I am taking permaculture classes through the University of Alaska, Fairbanks.
I purchased most of my components from the garden section of Lowe’s but one eluded me: large to medium size gravel. I resorted to taking some from around the foundation of my house and though I rinsed it a few times, I did not wash it. Upon completing my water filter the dirty water did not come out clean. So, what happened? My theory is that the gravel from the house wasn’t clean enough. We ran clean water through the filter and it still came out dirty, though sediment sank to the bottom of the lower half of the filter.