The Planted Tank Forum - View Single Post - Aquaclear 70 with 20 impeller, who done it?
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post #5 of (permalink) Old 12-03-2012, 10:26 AM
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Join Date: Dec 2011
Location: New York
Posts: 7,695
-1 to the idea of trimming the impeller. Just like the wheel balance of your car tires, youlll likely attribute to noise and premature wear if trimmed leaving unequal weight at all corners.

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