Hi @paulchen-panther

Did you really intend to add some drinking water (curiously named in German) in central London? I couldn't see them on the surface either when I was in the area (although there is an underpass nearby).

Regardless of country, unless they are actually "named" drinking fountain, you'd be better off tagging that fact using https://wiki.openstreetmap.org/wiki/Key:fountain as then anyone (regardless of the language they speak) will be able to find that info).