| 摘要 |
The invention is directed to 4 different aspects of a waste water outlet unit viz. <SL> <LI>(i) a cover (20) that can be securely and releasably attached to the unit by means of a non-screw threaded arrangement (68,72) (as shown in Fig. 4a); <LI>(ii) a dip tube and bucket combination wherein the dip tube is snap-fit releasably engageable with the bucket; <LI>(iii) a unit comprising a trap body having an inlet at its upper end and a releasable dip tube positioned substantiallly within the body; and <LI>(iv) a flexible sealing device having a continuous ring shape with a substantially frusto conical bore. </SL> |
