Rock And Sand Water Filter

Lab effectiveness field effectiveness and health impact.

Rock and sand water filter.

Slow sand filter lab effectiveness studies with a mature biolayer have shown 99 98 protozoan 90 99 bacterial and variable viral reduction. In recent history the past 150 to 200 years it. Very little of the water we use every day comes out of the ground completely pure. He commented that since the charcoal is very porous it s great for filtering.

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. 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. Users can maintain flow rate by cleaning the filter through agitating the top level of sand or by pre treating turbid water before filtration. 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.

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.