Finding Filtration Facility
Lauren King
University Transition Program
Floor Location : M 037 D

Water is essential to life. In fact, our very own tap water in Vancouver, BC is incredibly clean that it is unnecessary for further filtration; it is safe just as it is. However, not all water sources provide safe drinking water. In the event of a natural disaster, it is crucial to know how to obtain clean drinking water from dirty sources. Water with large amounts of bacteria require filtering, yet, not all methods eradicate as much bacteria as expected. In the experiment, five different household water filtration techniques were tested on fish tank water. These methods were boiling, bleaching, evaporating, a commercial water filter, and a homemade sand filter. Two millilitres of each sample of filtered water were placed in a cup of set gelatin. Samples of unfiltered tank water and tap water were also tested. Over a period of 96 hours, the samples were observed. In the cups of five of the seven water samples, cloudy water was evident. It was deduced that this was a result of the consummation of gelatin by the bacteria in the water. Thus, it was discovered that tank water filtered by a commercial water filter contained the least bacteria while the unfiltered and boiled tank water held the most bacteria.