If I pour foam, level it and glass over it to make my false floor should I leave the keel area open for drainage or pour it solid and seal it up? There will be stringers for support so I'm not relying on the foam for all structural support the floor.
If you run some pvc pipe down it, you can run wire for lights, radio, bilge pump, fish finder transducer wire...... maybe a 2nd. battery cables.... the list goes on. Use the largest size pvc pipe you can put in the "keel" area.