Rain: from roof to restroom
It is not every day that the inauguration of a toilet draws a hundred spectators. Such a toilet would have to be pretty special – and this one is. It is special because it is flushed using rain water gathered from the roof of Kemicentrum. LUM was able to follow the rainwater’s journey from parapet to porcelain. An ordinary toilet flush uses around five litres of water. The water used is the same a
https://www.staff.lu.se/article/rain-roof-restroom - 2025-10-06