Sewage
At the outer end of the Coast Guard pier, there is an emptying facility for the onboard sewer waste which is connected to the municipal sewer system.
Just moore alongside the pier, connect the nozzle to the black water drain, start the pump. After approximately 60 seconds the procedure is completed. Before hanging up the hoze, dip the nozzle in the water for a few seconds to let some freshwater flush the hose.