Sometimes the buildings need showers too.
In this case the underground high pressure water pipes come in very handy. When they become too worn out they demand some attention and complain about this to houses in a furious fountain way.
There is a video inside too.
Those are two different cases which happened recently in the country, in both of them, the residents of the buildings became quite scared when the water fountain wanted to pay them a visit through the window.
Look at how clean and tidy the front of the house is now.