More uses for Water

One issue I have with the game is that the water requirement scales linearly with population. Since Folktails only use it for thirst and Iron Teeth only adds a (tiny) breeding requirement, you can just add more water collection at a fixed rate. I think adding water requirements to a few more things would add a bit more depth, and improve the theme of water management

In real life Bread uses plenty of water, in fact some types of Bread are more water than flour, so adding water as a requirement to Bread makes perfect sense. It's also both a food source and its own comfort category, which means water use would increase more as you try to make your beavers more comfortable, and as the need for food increases.

Paper making also uses a lot of water in real life, and again is used for increasing comfort but also expanding, terrain deformation and water storage in the form of dynamite. Considering how powerful dynamite is, I think this is also an obvious option for adding more use of water.