| 摘要 |
The improved spa includes: a basin; a rotating motor element; an impeller which, in use, rotates to circulate water in the basin; and a magnetic coupling which couples the element to the impeller to provide for said rotation of the impeller. The coupling has a drive hub coupled to the element for co-rotation and a driven hub coupled to the impeller for co-rotation. The impeller is defined by blades carried by the driven hub. The improvement comprises a housing defined by a base and a cover, the base having a recess which receives the driven hub in close-fitting relation. The cover is secured to the base and defines, in combination therewith, a void in which the blades rotate in use. The cover is formed integrally out of plastic, has a screen for passage of water to the impeller and has outlets for delivering water from the impeller to the basin. |
