Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
sluice [sluːs] n (gate) шлюз; (channel) жёлоб#
vt
to sluice down or outпромыва́ть (промы́ть*perf), ока́тывать (окати́ть*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.