I'm from the island as well, I do get a fare amount of moisture in the air, 
But even though I have my tower like right next to one of my tanks I've never had a problem. 
  
On a side note I'd go back to the first 2 stores and demand my diagnostic fee back. 
If they didn't notice rust and corrosion they mustn't have taken a very close look. 
		
	
		
		
		
		
			
				__________________ 
				______________ 
Tim
			 
		
		
		
		
	
		
		
	
	
	 |