Water overflow into cleaning pond

water flow in a manhole like structure, near a pond, within the Berlin Rieselfelder area, former wastewater fields, where sewage water from the growing city was irrigated from the late 19th century on. Nowadays the area is important for nature conservation and biodiversity, and watermanagement becomes important again in order to make the wetlands and forests nearby resilient against rising temperatures. (Sony PCM D50, Primo EM272)