As an action, you either create, destroy, or purify water.
Create Water. You create up to 40 liters of clean water within 9 meters in an open container. Alternatively, the water falls as rain in a sphere twice as big as normal within 9 meters. Any burning creature in the area stops burning.
Destroy Water. You destroy up to 40 liters of nonmagical water in an open container within 9 meters. Alternatively, you destroy fog in a sphere twice as big as normal within 9 meters.
Purify Water. All nonmagical liquid within a sphere twice as big as normal centered on a point of your choice within 9 meters is purified and rendered free of poison and disease.
You create or destroy an additional 40 liters of water for each additional mana or psi expended. Alternatively the sphere increases by 1.5 meters for each additional mana or psi expended.