Try clean water that flows through the aqueducts built by slaves many centuries ago.
Around Rome you can find thousands of Fontanelle, from which flows the purest water, passing through the ancient aqueducts. Fontanelle are small fountains, and they are installed all over Rome.
Each fountain (in Rome they affectionately called «Nasone») is a work of art, they can be in the form of the female body, a book or a monument dedicated to the ancient god.
You can drink this water in unlimited quantities, which is rescued in the summer, when the weather in Rome is especially hot.
Tips and hints
how to drink water from fontanelle: close finger tip and out of the holes on the tube cock starts to beat up a trickle.