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			#13  
			
			
			
			
			
		 
		
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			OK, how 'bout this: a piece of, say latex glove, clamped on hose fittings. Put air in tank & latex should expand slightly. If it doesn't hold, I've got a leak. (I don't have a pressure gauge that will measure 3PSI)
		 
		
		
		
		
		
		
		
		
	
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