In Herve, a town between Liège (Belgium) and Aachen (Germany), a brick building with 7 arches covers the town’s main water source. It is located below the town centre. The building was built in 1894. It replaced the old woollen washhouse dating from 1783, which had only two wells. Despite the relocation of the textile industry to the Vesdre Valley in the 19th century, the growth of the population and the need for water led to conflicts between users. In order to solve the problem, the wate...