Welcome to the forum, Florian.

I did not follow up on this one once I had passed the message (see the OP).
But what ever happened, it happened sometime last year (August-September, if I remember correctly).
Meanwhile, in my experience dialysis techs (engineers, whatever) have usually been in short supply ... so, if you play your cards right, the world should be your oyster (as "they" say).
Good Luck.
