| 摘要 |
The present invention provides an access system for use with a drainage gully, the access system comprising a duct having a first end engagable with, in order to provide access to, the drainage gully, and a second end adapted to releasably retain a closure member therein, such as to allow a blocked drainage gully to be quickly and easily cleared without requiring excavation of the gully which is a tedious and time-consuming operation. |
