Yup, just a different mineral content than you may be used to depending on where you live.
What you'll find:
Your hair may become skanky due to mineral buildup so you may need to find different hair products
Things don't clean as well due to limescale build up
Your clothes are crunchy after washing and drying
Appliances don't last as long
It's fun! Apparently up north they have lovely soft water. They get all the good stuff.