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					Originally Posted by  Fenix
					 
				 
				finally someone!  thank you so much! 
i think thats my problem its not tight.  i opened the A knob a tab and now i m getting air bubbles everywhere. i cleaned my filter pad thing and still air bubbles.  any suggestions? 
			
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 You shouldnt be turning the A knob....what you want to do is very slighting pull the tube that comes out of A up to allow air to flow down the tube.