During installation of the inside furnitures and laminated floors I placed all flexible plastic tubes to protect the 12V Dc and 230V AC wires and the NMEA cables also to be built later. For this operation I drilled through the bulkheads and supported all holes on both sides with plywood doublers. Doublers are glued with epoxy, temporarily fixed with M10 bolts to insure the necessary pressure for bonding.

I drilled same holes for the freshwater pipes too.

Plastic hoses will be removed before painting inside, water tubes won’t. All hose tubes are marked with the number of wire (equipment) both sides.