Hello Bavo Luysterborg,

Thanks for updating the tagging of the Sorgente spring.

Did you mean that the water are not legally tested to be drinkable?

The [wiki](https://wiki.openstreetmap.org/wiki/Key:drinking_water#How_to_map) for drinking_water=yes says:

> There exists drinking water.
> The water is drinkable for humans. There must be objective reasons that allow you to conclude that the water is pure. E.g. in alpine territory the source is above any inhabited areas. One can assume that the water is pure when many people drink it every day.
> There is no warranty for this tag. The circumstances can change every day. Everyone should use caution before drinking water from unknown sources.
> If the water is checked and approved by public authorities, you can tag additional drinking_water:legal=yes.
> If there is a label "No drinking water" because there is no official control, you can add the tag drinking_water:legal=no. 

It looks like 
drinking_water=yes  + drinking_water:legal=no
would be a better tagging for this source
