Engineer/Kowloon (Headworks) of the Water Supplies Department (WSD), Ms CHENG Hoi-yi, says that colleagues of the WSD have studied a lot of information, as well as plans and drawings about the service reservoir to prepare for the guided tours.

Engineer/Kowloon (Headworks) of the Water Supplies Department (WSD), Ms CHENG Hoi-yi, says that colleagues of the WSD have studied a lot of information, as well as plans and drawings about the service reservoir to prepare for the guided tours.

Engineer/Kowloon (Headworks) of the Water Supplies Department (WSD), Ms CHENG Hoi-yi, says that colleagues of the WSD have studied a lot of information, as well as plans and drawings about the service reservoir to prepare for the guided tours.