I have written a post about this before, but I thought I'd repeat it, since I know this is so exotic to those outside of Finland.
Most cities in Finland have free places where people can wash their carpets. Those have metallic tubs with a wooden counter. Cold water comes from hoses and the used water runs to the citys sewer system. There is also huge amount of wooden racks where the carpets can be left to drip dry.
This time I went to the rug washing place together with A. The living room carpets is so heavy when wet, I could have never handled it alone. We also washed the rag rugs from the conservatory, finally. There were lots of people at the washing place, and I did not want to bother them by taking that many photos, but check my old post about rug washing, it's from the exact same place.