Rock And Sand Water Filter

Very little of the water we use every day comes out of the ground completely pure.

Rock and sand water filter.

In a biological sand water filter micro organisms most of them harmless grow and cling to the surface of sand particles inside the filter. Lab effectiveness field effectiveness and health impact. Slow sand filter lab effectiveness studies with a mature biolayer have shown 99 98 protozoan 90 99 bacterial and variable viral reduction. If you choose to create a sand filter you have the option of making a slow or fast filtration system both of which are effective.

As water flows slowly through the sand these organisms form a biofilm that traps and consumes other micro organisms including those that make people sick. Then after constructing the filter he continued to filter some dirty water and commented that the first little bit is going to be nasty since its getting the dirt off the sand and rocks in the filter. Some of the impurities are microscopic but many are large enough to remove with a crude filtration system that you can make yourself using sand and rocks. The water filter diy with sand is quite different from the simple filtration system as it requires more components and is a more complex but better way to clean your water.

Saw a video on youtube where some guy made a water filter out of a bottle charcoal sand and little rocks.