Homemade Biological Pond Filter

A homemade biological pond filter based on a standard filter design using off the shelf products.
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Check my website for links to the bulkhead fittings:
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For an alternative diy type pond filter see the skippy pond filter www.skippysstuf...
To learn more about how pond filters actual work google "pond nitrogen cycle" or click the following link lmgtfy.com/?q=p...
"Cold Funk" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 creativecommons...