| Component | Maintenance | Notes and precautions |
| Grey water tank | Cleaning | At least every month, drain the grey water tanks completely and rinse them a couple of times with clean fresh water. Periodically pour a specific disinfectant, in the quantity recommended by the Manufacturer, into the drains of sink and showers, in order to prevent the formation of bacteria in the system, and the consequent release of bad smells. |
| Grey water draining pump | Operation check | At least every month, check the status and the operation of the grey water pump, as well as its overboard drain. |