@rugk
Washing Salons in #karlsruhe
I was here on some occurences and was satisfied, but only Cash paying:
https://waschhaus-karlsruhe.de/karlsruhe-weststadt/index.html
The second one is newer, but I can't give you practical expetience:
https://www.washandgo.com/karlsruhe/
Both are about 10 mins away from #GPN21