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			#13  
			
			
			
			
			
		 
		
		
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			 I am adding an extra T and ball valvue in my closed loop for water changes. then it can go right from my tank out the window. i will keep the habit of 20% a month that i do now with my 55 on my 140 (175 total gal). 
		
	
		
		
		
		
		
	
		
		
	
	
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