But at the same time you should know that amenity=fountain is not rendered in OSM (don’t know if amenity=drinking_water is the same case but I guess so). You may put it in, but you won’t see it in the maps at any zoom.
Thanks! Precisely what I was looking for. And I’ll soon start populating the map with drinking-water points.
I hate carrying a water bottle with me on jogs, and instead rely on known drinking-water spots to get hydrated.