I think it is safe to assume that this would be possible in Arendelle eventually. We would just need to understand how their pumps work. As you said it is science, so it is something anyone with the tools and knowledge could do.

[Magic being a far rarer thing after all.]

He has a certain professional pride, does he not? [A laugh as she went to hold the door for her sister.] Oh they have a thing called an elevator in this building. We shan't be using it. I had to rescue someone screaming the other day with my ice.