You didn't try to set it outside the sump? I kinda thought thats what the big old u-tube was meant for, up and over the tank side. But, if your notusing it outside the sump, then you don't need that big ol tube in there. Lean the pump on its side, and direct plumb that baby with about 3-4" of pvc should about do ya. No?the hole thing sits in the tank but the collection cup is above the water.its really simple to set it up.it came pretty much all together.put the pump end in the in end of the skimmer and put the cup on and done.ill get a vid tomarrow.