Ciao i miei amici!
When traveling to Italy, do like the locals do: either bring a refillable water bottle or buy one when you arrive. In all of the major towns and even many of the smaller ones, there are public fountains everywhere. Many of them (especially in Rome) are fed by the original Roman aquaducts. No need to buy that €2 bottle of water. Just find the nearest public fountain and fillerup. I’ve mapped the fountains that I found here in Verona.
Ciao!