Drain cleaning - but how?

Drain cleaner (preferably in gel form) is available at every [Discounter]. Pour in half a bottle... wait half an hour - clear.

Haha, today someone came for the drain. The plug in the middle just had to be removed with gentle force. He pried it up with the help of a screwdriver and then everything could be cleaned very easily. Well, that was - actually fortunately - a very small thing. But you didn’t figure it out either. :-)))

But you didn't come up with it either. :-)))

Did you overlook post #2? already said it. So why not try it then?

Because I had already tried it before and it didn't work. You must have overlooked post #1.