And what if the wells are turned off for any reason, e.g. if there has been an event on the Saturday before?

Yes, that's a reasonable question. For that case there are other fountains that have to bleed, e.g. the money fountain.

What? Up there next to the Münsterplatz? That far?

Oh! With a bike that's no problem, that's quite comfortable and pretty quick. With the car it would be really awkward ... That's not too bad, really.

And what about the two squeegees? I mean, in the meantime ...

Yeah, that would be bad, really bad. My only concern. I need at least 4 full buckets and when I then should come back with a bucket filled and they're ... just because some wimp believes he can tout them ... That would be pretty awful! Not only because this "tandem" is a special design but also because ... , supposing, I happen to have emptied one bucket ... or even worse: only one. Imagine: no dirty removed yet but quite a part of the floor underwater instead. Then not even Ruth's baby powder could the pull the cart out of the mud. Therefore I definitely prefer the fountains this way: running.