By the way, the academy city's water transportation system doesn't deplete the minerals in any way because of the techniques used in building the transportation system...Hahaha, you seem like you're enjoying this Uiharu.Stop it!As knowledgeable as always Kazari-chan.splashslideslipThis natural hot spring water comes from a natural source via a tank lorry.And so this city's water comes from 23 different famous hot springs in Japan.It huuuuuuuuuuurts!