How about the drainage of European urban buildings?

1, rainwater drainage system. European urban buildings adopt layered design, which separates rainwater on the roof from rainwater on the ground and discharges it through rainwater collection pools, rainwater pipes and other facilities. This design can effectively reduce the impact of rainwater on buildings and the surrounding environment, and avoid rainwater infiltration and water leakage.

2. Sewage system. The sewage system of European city buildings adopts modern design, including sewers and sewage treatment facilities, which can effectively treat and discharge sewage and avoid pollution to the surrounding environment due to poor sewage discharge or improper sewage treatment.