Water Filtration Machine (Subnautica)

The Water Filtration Machine is a Habitat Compartment that gives the player a stable and consistent supply of water and salt. It can be constructed with the Habitat Builder and must be wall-mounted in a Multipurpose Room.

Use
A Water Filtration Machine utilizes Energy from the Seabase to desalinate seawater, producing Salt and drinkable water in the form of Large Filtered Water. It takes about 15 minutes and 40 seconds to produce one Large Filtered Water (+50 water) and 7 minutes and 40 seconds to produce one Salt. A single Water Filtration Machine uses 0.85 points of Energy per second, or 51 Energy per minute (taken two or three at a time), and thus can be powered nonstop with four Solar Panels above 100m depth or almost nonstop with one Bioreactor.

Building a Water Filtration machine has a base Hull Integrity penalty of 1.0 units. In addition, it blocks the construction of base components that take up an entire wall (Windows, Reinforcements, Wall Planters, etc) on the two wall panels either side of it. Thus, only four can be built per Multipurpose Room.

The four Storage of a Water Filtration Machine is sectioned into two slots for salt and two for water. If one resource is taken from the machine it will continue operating but generate only that resource: it is not necessary to remove the salt in order for it to make more water or vice versa. It will cease operation once its inventory is filled: in this state it will not draw power from the base.

A Water Filtration Machine can be built above water, but will produce no salt, and only make water at 1/8th of the speed below water.

If powering a Water Filtration Machine with a fuel-using energy source, particularly if using a Bioreactor, note that each Large Filtered Water takes 799 energy to produce: if the machine has been emptied, this means that at a reserve of at least 1,598 energy will be needed to avoid the base running out of power.

Gallery
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Trivia

 * When the Water Filtration Machine was originally added it was extremely cheap to build, requiring only 2 Titanium and nothing else.

Bugs

 * ,  A Water Filtration Machine will block the construction of base modules on the two panels adjacent to it, but not its own panel if the new module generates a corridor. If the player constructs such a module with the machine still in place, the Water Filtration Machine will be deleted and the resources used to make it will be lost.

Appareil de filtrage de l'eau