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Old 12-11-2007, 03:02 AM
Zylumn Zylumn is offline
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Join Date: Mar 2007
Location: Calgary , NW
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Drill out the holes larger to accommodate an one inch hole.

I am pumping 450GPH through 2 x 3/4" bulk heads with no problem and could go quite a bit bigger like 600+ GPH.
Kevin
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