While we're waiting for someone to look that up for you, take a gander at
the "Building Structure" string below... we mentioned using black corrugated
drain pipe to create fish attractors.

Joe
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"rich" wrote in message
.. .
Some months ago, I read about using rolls of sewer pipe in building
artificial reefs/structure. My Bassmaster magazine is back home ( 1200 miles
away).

Does anyone have a site or reference about building those things? It
appeared a great way to introduce structure to a lake that has a problem
with growing natural weeds, etc. Thanks RichG