Alshain wrote:
There are many, many free sources of liquid refreshment in the game; the vast majority of which are free of detrimental effects. Fountains, lakes and rivers are the most common ones used to drink and refill containers from.
When you first start the game, you'll find bread inside the sack - GET BREAD SACK - which you can then sate your hunger - EAT BREAD.
Given that your character is (slightly) hindered when being hungry and thirsty, it's better to eat and drink than simply turn the messages off.
I would just like to point out a very important fact here.
"the vast majority of which are free from detrimental effects" Meaning that some have VERY detrimental effects. If you find yourself choking and gagging after drinking some water, you might be in trouble.
Also, he says here that you can refill water containers at fountains, rivers, and lakes. The last time I tried on a river or lake I couldn't. It appears that it checks for a foutain item on the fill command. Some pools, and springs and such that aren't really fountains are flagged as such that can refill though.