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			#5  
			
			
			
			
			
		 
		
		
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			 Tony, if my media turns "sludgy", I replace it. This happens near the bottom of the tube, maybe 2 or 3 inches worth. 
		
	
		
		
		
		
			
				__________________ 
		
		
		
		
	
		
		
	
	
	Brad  |