This is an inexpensive homemade water filter setup. Made from a coffee creamer container, a Brita Water Filter and a 2 inch rubber O-Ring. There are two ways to kill any virus or bacteria which might be in the water and that is to boil the water or to use chemicals. For this video I chose bleach, but there are other chemicals that are available in most outdoors style stores or military surplus stores. I forgot to add to the video that for water that is filled with larger debris and that is a little more cloudy to use a cloth inside the container to extend the life of the filter in use. Be sure to follow the instructions of the brita filter prior to use in the feild, if filter is not placed in a glass of water before using you will end up with water with charcoal dust floating in it. VERY VERY VERY IMPORTANT………..bleach is only partly efective in killing the viruses cryptosporidium and giardia if used alone. The best way to kill all of the little buggers in water is to boil it. The tabs that you can buy at most outdoor stores are also considered a top method. If used prior to filtering the bad taste can be removed. Before using a filter or chemical in your water PLEASE do research on all of it!!!! Find the best option for you then make your choice of how you wish to proceed. I am not responsible for someone getting sick. Do the research!