A homemade water purifier removes iron and other impurities with the help of sand and charcoal. People living within the embankments in Saharsa depend on groundwater that has too much iron in it.
A homemade water purifier removes iron and other impurities with the help of sand and charcoal. People living within the embankments in Saharsa depend on groundwater that has too much iron in it.
A homemade water purifier removes iron and other impurities with the help of sand and charcoal. People living within the embankments in Saharsa depend on groundwater that has too much iron in it.
A homemade water purifier removes iron and other impurities with the help of sand and charcoal. People living within the embankments in Saharsa depend on groundwater that has too much iron in it.