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#3
02-10-2006, 08:44 PM
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Mine is the same idea, just with 1.5" PVC capped behind the rockwork. (But fish and stuff will still get to it I have not doubt)
Min is just with cuts instead of holes, I am still worried of a fish getting stuck. I could try some PVC with holes and compare the suction per square inch with my hand. Any other ways people have done this? 
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