Sump
01
排水ピット, 集水槽
a pit or reservoir typically found in the basement or lower level of a building that collects excess water or liquid, such as groundwater, rainwater, or wastewater
02
オイルリザーバー, オイルパン
an oil reservoir in an internal combustion engine
03
汚水溜め, 浄化槽
a covered cistern; waste water and sewage flow into it
