What is the second hole in the bathroom bidet for? It is very useful, but everyone ignores it.

There is a second bidet space in the bathroom and it is really useful: it is not only made for aesthetic reasons, but it is 100% functional.  There is a   second hole in the bidet    and it is not a purely aesthetic feature as many people think. In reality, this design detail was studied for an emergency function, although it seems to disappear completely in the new models. The extra top hole of the bidet is necessary, even essential, in some cases. Most of the time no one knows its    true function    and why it was created.

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