POOL CLEANER

摘要

A pool cleaner which includes a body (10), at least one passage (40) which extends through the body with an inlet (42) on the passage (40) and an outlet (44) from the passage at respective opposed ends of the passage having a minimum cross-sectional area at a position selected from the inlet (42), the outlet (44), and a location between the inlet and the outlet, the cross-sectional area of the passage in each direction extending away the said selection position towards each respective end (36, 38) of the passage monotonically increasing in magnitude.