Three Letters Re: Use the Ground You Live on for More Than Walking
Jim Explanations about constructing homemade slow sand filters are on numerous web sites and have been for years. Typically, they use 5 gallon buckets with layers of sand (sometimes they specify the size of the grains of sand), gravel and charcoal. A little bit of research will show how to construct one to experiment with and to maintain for use in an emergency. Typically these are not very effective against water that is contaminated by chemicals. While barrels will allow you to filter more water, you will not be able to move it and there will be the problem of …