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Old 05/30/2015, 10:23 PM   #334
SantaMonica
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Join Date: Feb 2007
Location: Santa Monica, California, USA
Posts: 2,437
That's the filtering challenge. Check the advanced section for the scrubber thread, and lots of ideas there.

BTW many NPS are uni-directional feeders, especially deeper ones, and they orient themselves to only one direction of flow.


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