DRAIN

[noun] [C]A drain is any of various devices, such as a pipe, which is used to carry away waste matter and water from a building, or an opening in the road which rain water can flow down.I think the kitchen drain is blocked.She accidentally dropped her ring down a drain in the road.(figurative) Having a big mortgage is a real drain on (= uses a lot of) your earnings.(figurative) I think looking after her elderly mother is quite a drain on her energy (= makes her very tired).See picture: House