I'm willing to bet that SWC didn't bother fixing the intake on the pump cover and that is why the pumps are not pulling over 20lpm. I'd like to see a photo of the grey cover without the reducer in there, one photo of the intake straight on from the front and one from the inside part of the cover.
Pics of my Sicce skimmer from Orca Systems are here, for reference/comparison:
http://archive.reefcentral.com/forum...readid=1233652
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Orca Systems Custom Skimmer w/3 Sicce PSK-2500s in Recirc mode. 3850lph of air at 73 watts.
fish: royal gramma, true perc, hepatus tang, hawaiin sailfin tang, citron goby, radiant wrasse, 1m, 1f solarensis wrasse, fed Rod food
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