Water quality in Adventure

Clean water has no quality-based Sickness roll. Unclean water has a 15% base chance, and Murky water has a 40% base chance, each time you drink. Status resistance can prevent Sickness after that roll. Drinking from a source restores up to 15 thirst. Drinking from a container uses only enough water to fill your Thirst bar. Its quality is checked once for that action, rather than once for each unit of water.

Refilling and boiling

Topping up Unclean or Murky water with cleaner water leaves the whole container at the worse quality. Empty it or purify its contents first. A successful refill while directly beside a campfire, hearth or stove makes the whole filled container Clean, including any water left inside. A diagonal heat source does not do this. The refill action can also fill a spare container in your backpack or all your containers when you choose the matching action.

Sea water and other modes

Sea water is Saline. Drinking directly from it costs 5 thirst, and normal refilling refuses it. Vampires cannot drink water from a source or a container. The Wilds uses safe and unsafe water amounts, boiling jobs and its own illness effects. Fortress water supply follows its own colony rules.