The floor of the sluice is laid with riffles made of strips of wood 2 in.
A sluice of 6 ft.
A small sluice placed in the side of the conductor opposite to the meadow, and at the upper end of it, will drain away the leakage that may have escaped from the head sluice.
of Spain caused a sluice to be built into the dock in 1567.
at neap-tide; in the sluice of the dock the numbers are 291 and 231 respectively.