So how is the flow with the closed loop?  I was thinking of maybe using my 4MD for the same, once my MAK4 arrives to replace the 4MD as a return pump.  Got any pictures of the closed loop system? 
 
Lee 
		
	
		
		
		
		
			
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				Need more time for the tank... Break a leg!
			 
		
		
		
		
	
		
		
	
	
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