Idea. Add a new type of water – drinking water.
Make well and spring water (small ones) is drinkable - "Drinking water". Regular water is drinkable, but (minimal) with a risk of getting worms or (and ideally) a disease specifically created for this purpose (and a cure for it) – intestinal infections. Both options are possible at once, with varying probabilities. Salt water from the sea or ocean (not drinkable) can be distilled to make Drinkink water. Spring water remains unchanged.
Reason. There are many sources of thirst quenching in the game, but very few are used for this purpose.
There are 3 types of water in the game:
1) Salt. From the sea or ocean. Not drinkable. It is used mainly for medicine and 2 crafting recipes. In reality, it can be distilled to produce purified water. A questionable method for producing drinking water, but it's an option.
2) Water:
- From a river/lake – the most common source of water. Although in reality, drinking this water without water is only possible with the risk of contracting bacteria, viruses, and microbes. It can only be drunk after filtering and boiling.
- From a well. Most people build a well, and if the water there is of poor quality, they drink water brought from another location or from a "public well." Deepening is generally only done in large villages. In reality, it's practically the only source of drinking water.
- Spring. Drinkable. Another source of drinking water. They're rarely used in the game unless there's another source nearby.
3) River sources. Spring water. A local spring. The water is drinkable, but is rarely used for this purpose. Let's keep it that way.
And various drinks: alcohol, juices, milk.
These are mainly used for pre-meal buffs.
Advantages:
- More people will build wells and deepen them. This will become a more important factor when searching the place for a settlement. Either build a well or catch a stomach ailment every time.
- Springs will become used more common. Some people will settle near them. Although they can't be deepened, they are a "free" source of drinking water.
- People will start using "alternatives" to water as they did before —various drinks. Milk, juices (plant are natural filters), alcohol. This requires a deeper understanding of the game and the development of industries related to their production.
- They will start using a distillation device (Still)
- *A dubious benefit, but people won't actually drink from the river because that's what they're used to in Haven.