You don't really want that much flow though the sump unless microbubbles are your goal. Also you are limited to the drain size on the gph it will flow. Simply adding another u-tube is not going to increase the capacity. 600 gph is about all the flow you want through the sump.
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Jack
S.L.A.S.H. Custom Made for Enthusiasts.
And the more I know, the less I understand
All the things I thought I'd figured out
I have to learn again
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