hehe
I don't think it's very hard or soft. It's pretty good I think. It's city water - is that a universal answer or do some cities have different water? I don't have a filter in my humidifier. I'm tired of trying to find the right one and paying for them.
My husband is really looking forward to a science experiment - making a distiller in the basement... think if we get enough water, we can distill other things?? Or something? ;c)