trying to build my sump to fix the skimmer before i get the skimmer. i know the skimmer is 9x7x20. im having issues witht eh skimmer output. is that tube with in that 9x7 or is it outside of it. im looking to making my sump chanber for the skimmer 10x9 but not sure i will have enought room with the output if its outside of that 9x7. can anyone help me here.

