Quote:
	
	
		| 
			
				 
					Originally Posted by BCOrchidGuy
					
				 
				Beverly, yes the impeller shafts, I believe they are stainless steel, and I've found they go black. 
			
		 | 
	
	
 Doug, will keep an eye out for that, as I have never noticed it.  As Doug L. has said, I too have used 802s and smaller Hagen PHs for as long as I can remember and have not yet experienced problems.