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Question about D5 pump

post #1 of 3
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I just bought 2 Swiftech Variable D5 pumps in from FCPU and while assembling them to the EK tops, I noticed that when I turned one of the impellers by hand, it squeaked. Is this normal or do I have reason to worry? The other pump turned silently by hand.
Edited by SinatraFan - 11/20/13 at 8:42am
    
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post #2 of 3
This also worried me when I received my first D5 pump (I have 4 of these pumps) and the squeaking is absolutely normal. When the impeller is wet or under water, the squeaking will go away.
post #3 of 3
The bearings are lubricated by the water in the pump, which is why you shouldn't run them dry (I know you just turned it by hand). When the pumps are dry there may well be some squeaking, it should go away when there is water in the pump, as Ardi suggested.

If it worries you try putting some distilled water on the white ceramic ball and turning it, the squeaking should go away.
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