Kompetisi Bangunan Air Indonesia (KBAI) is a competition organized by the Himpunan Mahasiswa Pengairan Fakultas Teknik Universitas Brawijaya, which is a place for undergraduate/equivalent students in the field of engineering and high school/equivalent students throughout Indonesia to compete in pouring ideas to provide innovative solutions related to water resources problems at the national level to increase public awareness of water problems in Indonesia. Kompetisi Bangunan Air Indonesia (KBAI) 2023/2024 raised the main theme "Modernization of Water Infrastructure to Solve the Clean Water Crisis as a Move Toward Realizing Indonesian Ecological City", there are two competitions, the Full Paper for College Students competition aimed at undergraduate/equivalent students in the field of engineering and the Infographics for High School Students competition aimed at high school/equivalent students.