Water Upgrade is an addon for Sophisticated Backpacks that introduces two new items: the Drinking Upgrade and the Advanced Drinking Upgrade. Once installed in a backpack, they automatically consume water-compatible items stored in the backpack to restore the player's thirst.

The basic Drinking Upgrade provides filter slots to specify which drinks to consume. The Advanced Drinking Upgrade adds a thirst level threshold setting (any / moderate / full) and a toggle to drink immediately when hurt. The upgrade also works when the backpack is placed as a block, hydrating players within 3 blocks.

Note: This mod requires at least one of the following thirst mods to function: Tough As Nails, Legendary Survival Overhaul, Homeostatic, or Thirst Mod.

Each upgrade type is limited to one per backpack, and filter slot counts are configurable via the server config file.