you are using some new tags to describe fire hydrants. There is already an established scheme for tagging used thousands of times, including these tags:
See here for more:
Use automatic translation.
tags you quoted are those of today in this page  there are changes with new tags, they replace some tags for hydrants or similar.
The page should be in the approval phase and a short (there is certainty) become predefined tags for the mapping of hydrants.
There is no voting on this proposal yet. Please wait until it has been accepted before changing the tagging of existing nodes on a larger scale.
You speak italian? :)
Grant me a month, Meanwhile I am Italian mailing list, if from them I recommend to stay with old tags, up to the final vote, give to replace the tags.
Maybe someone intervenes in the comments of the changeset, let me also this, at the bottom it is to understand what tags are suitable to reality.
Thanks and apologize for my insistence to stay with new tags.
I'm fine with a new tagging scheme, but we have to keep in mind that this might break existing tools, that don't understand these tags yet.
Hi. I agree with mueschel. Before changing the tagging scheme it had better to update the tools that use this data like osmhydrant and openfiremap.
Ciao, ho rimesso i vecchi tag, per favore controllate se è a osto, ho lasciato wrench=pentagonal, erchè mi pare un dettaglio aggiuntivo che non influisce.
Ciao e grazie per le vostre eventuali.
Per me Ok
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