The drain is at the aft end of the ice box. The icebox is framed in by bulkheads on the three sides with no access to the space under it. I have been down in the cockpit locker and had the trash bin and of course the storage locker door open. All of those spaces have been painted by me so I know for sure the drain hose is not in there. According to the line diagram in the owner's manual there is a cold loop in this hose and it drains into the bilge which goes back to a sump in the aft end of the keel. My guess is that the hose has to be directly under the icebox going through a hole in the cabin sole, also under the icebox. I honestly don't know how I could get to that area without cutting through one of the surrounding bulkheads into a void? The side of the icebox? It would be a random hole at best. The icebox is the double cover to the left on the counter. The single cover behind the stove is a shollow storage locker.