🌐EnglishEnglishFrançaisРусскийالعربيةفارسی中文EntityQ30681114· pop 5· linked from 43 articlesgravity sewerconduit which removes wastewater by use of gravityAvailable in 5 languagesFrançaisالعربيةUkrainianفارسیvia Wikidata sitelinks · CC0Connectionssanitary sewer networkEntitysewage treatmentEntityCategoriesHydraulic engineeringSewerage infrastructure