"Professor: Is magically conjured water safe to drink?"
It seemed like a stupid question. But he supposed that wherever they were conjuring the water from at the very least largely influenced the cleanliness of the water. Not that a bit of lightly contaminated water would kill them, but it could definitely cause enough cramping to make you wish for an end in sight.
That being said, Dmitry flipped to page ninety-four. He started reading about the details of the spell: A conjuration charm, which meant it fell under the category of an advanced transfiguration concept. The water it produced should be pure. "Nevermind, says here it's pure water. Should be okay."
Brandishing his wand, Dmitry's Elder wood swished through the air in a sideways S pattern, intoning carefully: "Aguamenti."
A small sprinkle of water trickled out of his wand in a downward slope with hardly enough water pressure to make it further away than his lap. It sounded-and looked-like he'd pissed himself.
Welp, that pretty much sets the tone for the day. Piss.
Still though, for his first time using the spell, that wasn't so bad.