Bottle Drainer

The Bottle Drainer is a building that can designate storage areas for particular liquids by using its Element Filter. Instead of acting as a general-purpose delivery target, a Bottle Drainer with an element filter set will mark a region to receive only the chosen liquid(s), allowing players to control where specific fluids are deposited.

Using the Element Filter on a Bottle Drainer assigns one or more liquid types to that drainer's target area. When configured, the drainer becomes a delivery destination for the selected element(s) so that only those liquids are stored there. This lets you separate different fluids into dedicated zones and avoids accidental mixing of incompatible liquids in the same storage area.

Practical notes and best practices:

• Configure the Bottle Drainer’s Element Filter to the exact liquid(s) you want stored in that zone; the filter is the mechanism that enforces which liquids will be delivered to the drainer’s area.
• Create multiple Bottle Drainers with different element filters to produce distinct storage regions for each liquid you need to manage.
• Use filtered drainers to keep volatile, corrosive, or otherwise problematic liquids isolated from general storage pools.
• Combine drainers with careful layout of delivery paths and storage tiles to ensure that duplicants and transport systems route only the intended liquids into each designated area.
• The Element Filter approach is useful wherever precise liquid segregation is required, such as separating potable liquids from industrial wastes or keeping high-priority reagents available in a controlled location.

The Bottle Drainer’s element-filtered zones are a straightforward, reliable tool for organizing liquid logistics. When planning storage and delivery, assign filter-specific drainers to each liquid class you want to control so that storage behavior remains predictable and separated across your base.