I hope that also proves useful, washing on the upper floor. In the laundry room there is also the large "dirty washbasin". Maybe it would have been better on the ground floor after all, because you actually have to carry big, dirty things that you want to clean up the stairs (in our case also without risers). But - my husband offered me this week to install a small utility sink next to the door in the technical room. Apparently, there is just enough space next to the first connections. Then I can clean dirty shoes or something there.