Quote:
Originally Posted by fkshiu
That is called a paddlewheel impeller. Yes, I know it looks the same as a standard impeller, but it works the same way as a needlewheel by chopping up the air/water mixture. Most skimmers use needlewheels. Having a paddlewheel on a skimmer pump is quite rare.
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so whats the difference between a paddlewheel impeller and a standard one?