Document
Large Biosand Filter Puzzle - Version 10
This poster of a Version 10 biosand filter can be used in a training session or comminuty education event to show how the sand, small gravel and large gravel are layered inside the filter.
Document
Large Biosand Filter Puzzle - Version 10
This poster of a Version 10 biosand filter can be used in a training session or comminuty education event to show how the sand, small gravel and large gravel are layered inside the filter.
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No text
Format:
Adobe PDF
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