Holy Smokes - this thing cannot be that hard to find. Is it fresh water or sea water? The pics look like clean water (fresh?) Try this - vac and towel dry the bilge. Line the entire bilge with paper towels (from port to starboard and bulkhead to stern). Then keep a close watch on them to see exactly where the water is coming from. Where it is lying in the pic is where it is eventually going to end up no matter where it is coming from.