3 holes on side of base: needle like fill port, fills at an angle; air flow control screw; air entry screw. Thought I saw on grimmgreen, and Pbusardo. Can't find it now. Thought it was a rta.
Thanks in advance
	
		
			
		
		
	
			
			Thanks in advance
 
				
		 
 
		 
 
		 
	
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		