On one of my tanks I Y tee'd the loc-line return, so that I have both surface flow and deeper flow. The deeper outlet has an eductor end and seems to work well with lots of flow. Having said that, I have no way of measuring it, so of course can't say for sure. But it does seem to accelerate the flow there, so I think it does work. Oh,... and the return pump is 900 gph, and the loc line size is 3/4".
Last edited by Reef Pilot; 06-14-2013 at 05:34 PM.
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