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					Originally Posted by  jason604
					 
				 
				Can't I just put rowaphos at the bottom then the foam pad then carbon n another foam pad so I can just change carbon only easier? 
			
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 As long as the rowaphos can tumble at a slight boiling action, but the carbon should be packed tight between sponges so it does not tumble, I suppose it could be done that way, give it a try.