why leave out the rock? should I use gravel instead? I like the look of the rock
Roger

You can never get all the crud out that rock collects, if you must have it,
only have one layer, imo. ~ jan


See my ponds and filter design:
http://users.owt.com/jjspond/

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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