Pitcher Replacement Filter
Sabtu, 16 Juli 2011
Slow Sand Water Filter
Slow Sand Water Filter
Prototype unit I built to help me get a better feel for what kind of filtration rate (GPM/sq.ft.) I might expect to see on a larger system (think
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Prototype unit I built to help me get a better feel for what kind of filtration rate (GPM/sq.ft.) I might expect to see on a larger system (think ...
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