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					Originally Posted by  The Grizz
					 
				 
				Quick answer for tonight on the 2 return chambers. Going to be running 2 - DC10000 return pumps with OM 4ways on each to a total of 8 return lines threw the back of my new tank. 
			
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How big is the display?  I like OM on closed loop rather than return line.  I would have one return chamber and both pumps in there.  Have the sump flow one direction.  Returns go straight to tank with maybe a couple splitters so you have 4 nozzles going into tank (depending on size of display).  Then make closed loop to run the 8 OM outputs.
Eight 4" filter socks?  I would rather use four 7" filter socks.  I hate 4" filter socks.