rinci gismu

x₁ liquid/fluid drains/strains/flushes from source x₂ through drain/strainer x₃ by force x₄.

x₄ is usually gravity. See also pambe, tisna, setca, flecu, muvdu, ganxo, rirxe.

In notes:

flecu: x₁ is a current/flow/river of/in x₂ flowing in direction to/towards x₃ from direction/source x₄.
ganxo: x₁ is a/the anus/anal orifice/asshole/arsehole [body-part] of x₂; [metaphor: exit, waste exit].
muvdu: x₁ (object) moves to destination/receiver x₂ [away] from origin x₃ over path/route x₄.
pambe: x₁ is a pump/injector [tool/apparatus] pumping/inserting fluid x₂ to x₃ from x₄ by means x₅.
rirxe: x₁ is a river of land mass x₂, draining watershed x₃ into x₄/terminating at x₄.
setca: x₁ (agent) inserts/interposes/puts/deposits x₂ into interior x₃/into among/between members of x₃.
tisna: x₁ (object) fills/becomes stuffed [up]/inflates/blows up with material x₂; x₂ pours into x₁.
blucri: x₁=cir₁=cib₂ loses blood x₂=cib₁=cir₂ under conditions x₃=cir₃; x₁ bleeds