Rock And Sand Water Filter
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.
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. Saw a video on youtube where some guy made a water filter out of a bottle charcoal sand and little rocks. Slow sand filter lab effectiveness studies with a mature biolayer have shown 99 98 protozoan 90 99 bacterial and variable viral reduction.
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. In recent history the past 150 to 200 years it. 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. Users can maintain flow rate by cleaning the filter through agitating the top level of sand or by pre treating turbid water before filtration.
He commented that since the charcoal is very porous it s great for filtering.