Potion of water
|Monster use||Will not be used by monsters.|
A potion of water is, as one would expect, water. The Guidebook states that every clear potion is a potion of water. Thus water is the one type of potion that you can identify by appearance. (No one expects water to be red or smoky.)
Quaffing an uncursed potion of water gives you d10 nutrition and displays the message "This tastes like water".
Identifying any clear potion will provide discoveries knowledge that all clear potions are potions of water. Once discovered, a blessed clear potion is listed as a potion of holy water, while a cursed clear potion is listed as a potion of unholy water. Using an altar to determine beatitude of future potions of water will identify all potions of water as holy, uncursed or unholy appropriately.
Dipping into water
If you dip an object into an uncursed potion of water, it will become wet. (Metal objects rust, potions of acid explode, scrolls become blank...) This is typically useless, because you can just dip into a different source of water such as a fountain or pool. It is far more useful to change uncursed water into holy or unholy water.
Dipping an object into either holy or unholy water does not make the object wet. In brief, holy water will uncurse or bless an object, while unholy water will unbless or curse an object; then the potion is used up and disappears (or you have one less potion in your stack). You can dip an entire stack of objects each time.