It must be hooked up wrong if its new and has higher tds out than in. 
Did you flush and throw away the first 5 gals of water? 
 
Pics would help us to see how you have it hooked up 
 
27 psi is low pressure is that your incoming pressure? RO/DI needs at least 60 psi to function properly 
		
	
		
		
		
		
		
		
						  
				
				Last edited by hillegom; 03-13-2013 at 02:08 AM.
				Reason: added question
				
			
		
		
	
		
		
	
	
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