The water-maker for ships produces fresh water from salt water drawn directly from the sea. NauticExpo offers different types using different desalination processes: reverse osmosis, evaporation, distillation, etc.
The water-maker for ships produces the fresh water needed to meet on-board needs.
Water-makers for ships use different methods of producing fresh water. Reverse osmosis systems use a series of membranes to remove salt. Other types use evaporation, distillation, etc. Ships carry much larger water-makers than boats or yachts, giving them the ability to produce substantial quantities of fresh water.
The operational characteristics of each type of water-maker should be considered. For example, reverse osmosis systems are the least expensive, but their output per unit input of seawater is relatively low.