Fresh Water - Daily Demand Estimate
Daily fresh-water demand by crew + technical uses - basis for sizing the fresh-water generator duty and the holding-tank capacity.
Potable demand
3,600L/day
Total demand
4,300L/day
Total demand
4.30m³/day
Formula, assumptions, and limits
IMO MLC 2006 allows 70 L/day minimum potable per seafarer - shipboard planning uses 150 L/day to include hygiene. Passenger vessels typically budget 300–450 L/pax·day.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Persons on board | pax | muster list | |
| Per-capita consumption | L/day | MLC 2006 |