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					Originally Posted by  The Codfather
					 
				 
				Not necessarily, reeflo pumps for example run more efficiently if valved off a little. They actually recommend it. Valving off a discharge is the equivalent of more head pressure. 
			
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 He's talking about Mag pumps or their equivalents. I've always been told that valving off Mags & similar pumps is a no-no. I've never done it so I have no personal experience of it causing a pump to fail. If I'm wrong, then I apologize for passing on bad info. However I was told this by several experienced reefers.
Anybody valved off Mags or similar pumps on here & if so, what has been your experience??
Anthony