| 摘要 |
<p>A passive dispensing device (10) for use in dosing a toilet bowl (19) with water treatment material comprising: a housing (11) forming a chamber (14) which is adapted to hold water treatment material means (34), reservoir means (12) within the housing (11) for holding a reservoir (25) of water containing said water treatment material (34), water flow path means (17) between the chamber (14) and said reservoir means (25), water flow passageway means (21) extending upwardly away from said reservoir means (12), said passageway means (21) having its lower end (22) in communication with said reservoir means (12) at or adjacent its bottom wall (13), and its open upper end in flow communication with the cistern interior, said upper end being located (Y-Y) below the upper edge of the housing (11) (and below the level of the water within the cistern when full), whereby water, during the filling of the cistern (19) will flow into the reservoir means (12) upwardly along said water flow path means (17) and into the chamber (14), via said passageway means (21), whilst, when the cistern (19) is flushed, a portion only of the water within the device (10) (and containing said water treatment material) will be discharged into the cistern (19) via said passageway means (21). <IMAGE></p> |
