I suppose that just means that the dragon will run dry for a few moments when power comes back on after a power failure.  Within a few moments, the eheim would be pushing water into that pump so it wouldn't damage itself. 
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					Originally Posted by  Jason McK
					 
				 
				Yes the water will drain out of the feed line.  
the supply pump is in the sump and is an Eheim Universal 1260. So when I power off the unit the Eheim starts first and when the RD is primed i turn on that pump.
 
J
 
Ruth I found the plumbing  HERE 
			
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				400 gal reef.  Established April, 2007.  3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways,  Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
 
My Tank:   http://www.canreef.com/vbulletin/showthread.php?t=28436
			 
		
		
		
		
	
		
		
	
	
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