Question:
I'd like to know if it's safe to have sealed bottled water in my soft-sided, rolling suitcase (about 36 x 18 inches), or should I expect that changes in pressure or harsh baggage handling will produce wet garments?

Answer: Speaking as an American, I have no probably with drinking tap water anywhere in Europe. The only reason I don't drink much tap water when i visit European cities is that its impossible to find except at the hotel where I am staying. When I ask for water at a restaurant in Europe, I invariable get sparkling water (which I hate) or a confused look on the waiters' face when I order a glass of plain water. I also don't recall ever seeing a public drinking water fountain in Europe, at least in the areas where I like to visit

1) I've never been to a college campus where it was necessary to drive anywhere in order to find drinking water. I have visited, conservatively, 200 college campuses on all continents except for Antartica, but if I've learned anything it's that there are exceptions to every rule. Nevertheless the odds seem stacked against this one in particular proving to be the unique execption.

2) I've never been anywhere in the USA where the drinking water smelled like poop.