Quote:
Originally Posted by RandallNeighbour
Jake and others: what about water pumps with metal impellers?
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As I understand it these are rather cheaply made parts, and I wouldn't be surprised if you're at more risk of failure of the component overall as opposed to just the impeller in that case, not that either is desirable. I think if the ones with a metal impeller were that good there'd be much more talk of them and their impressive performance.