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			#7  
			
			
			
			
			
		 
		
		
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			 After some quick research it appears that the orientation of the wetside does matter.  To stop a vortex from occuring, the solid section of the wetside should be facing up towards the top of the tank.  This makes sense from a physics perspective (although I am no Sheldon Cooper!). 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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