Kind of cramped in here, but there is a shower sump mounted in the forward-most cutout. The bottom of this compartment is about 8" higher than the aftmost bilge for some reason. Yes, I CAN remove the sump from there if I need to.
The discharge hose exits aft and passes through the main bilge before going to an overboard thru hull.
You can see the problem I had with the shower pan drain hose coming in from the top right side of the picture. A flat bottomed boat requires some ingenuity! The sub-floor just happened to be the perfect thickness for some 1/2 hose to sit in! A little creative routing with the Dremel tool, and the problem is solved!