1950 — Page 47

Public Works Department Annual Report 工務司署年報 All AI Reviewed

219. Pumping Raw Water:-During the year 2,901 million gallons of raw water were pumped out of a total consumption of 12,286 million gallons. At Tytam Tuk a fracture occurred on the suction box of No. 4 engine. A new casting was made by Messrs. Lee Tung Wo, tested and put into use. A second fracture occurred later on the H.P. valve chamber of No. 3 engine. An attempt was made to repair by welding but this proved unsuccessful and towards the end of the year tenders were invited for the manufacture of a new casting.

220. Preparations were in hand for the installation of stand-by Perkins diesel engines, purchased locally, at Aberdeen Upper and Lower Pumping Stations.

221. Filtration and Treatment:-Some 12,310 million gallons of water were filtered at twelve filtration plants. New rapid gravity filters at Eastern and slow sand filters at Wong Nei Chong were brought into use during the year.

222. During the year samples of water were examined regularly by the Government Pathologist and by the Government Chemist. Details of result are given in Table IV.

223. Pumping Filtered Water:-A total of 1,144 million gallons of filtered water were pumped out of a total consumption of 12,286 million gallons.

224. A stand-by Ruston diesel engine was installed at Garden Road Pumping Station. This engine was a pre-war engine which was surplus to requirements.

225. The new Eastern Pumping Station was brought into use. A description of this station is given in paragraph 255.

226. The new Diesel engine plant ordered under Indent No. 48/48 for Pokfulam Road Pumping Station to replace the steam engine plant had not arrived by the end of the year.

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218. The damaged 21″ cross harbour main (referred to in paragraph 200 of last year's Report) was replaced by a new 50 foot length with an expansion joint. The pipe was protected by concrete sheathing and lining. Preparations were in hand for the replacement of the corroded muntz metal joint covers by cast iron covers. The welding up of leaking joints on the 24″ Shing Mun Trunk mains was continued throughout the year. 219. Pumping Raw Water:-During the year 2,901 million gallons of raw water were pumped out of a total consumption of 12,286 million gallons. At Tytam Tuk a fracture occurred on the suction box of No. 4 engine. A new casting was made by Messrs. Lee Tung Wo, tested and put into use. A second fracture occurred later on the H.P. valve chamber of No. 3 engine. An attempt was made to repair by welding but this proved unsuccessful and towards the end of the year tenders were invited for the manufacture of a new casting. 220. Preparations were in hand for the installation of stand-by Perkins diesel engines, purchased locally, at Aberdeen Upper and Lower Pumping Stations. 221. Filtration and Treatment:-Some 12,310 million gallons of water were filtered at twelve filtration plants. New rapid gravity filters at Eastern and slow sand filters at Wong Nei Chong were brought into use during the year. 222. During the year samples of water were examined regularly by the Government Pathologist and by the Government Chemist. Details of result are given in Table IV. 223. Pumping Filtered Water:-A total of 1,144 million gallons of filtered water were pumped out of a total consumption of 12,286 million gallons. 224. A stand-by Ruston diesel engine was installed at Garden Road Pumping Station. This engine was a pre-war engine which was surplus to requirements. 225. The new Eastern Pumping Station was brought into use. A description of this station is given in paragraph 255. 226. The new Diesel engine plant ordered under Indent No. 48/48 for Pokfulam Road Pumping Station to replace the steam engine plant had not arrived by the end of the year.

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.................. 37 218. The damaged 21′′ cross harbour main (referred to in paragraph 200 of last year's Report) was replaced by a new 50 foot length with an expansion joint. The pipe was pro- tected by concrete sheathing and lining. Preparations were in hand for the replacement of the corroded muntz metal joint covers by cast iron covers. The welding up of leaking joints on the 24′′ Shing Mun Trunk mains was continued throughout the year. 219. Pumping Raw Water:-During the year 2,901 million gallons of raw water were pumped out of a total consumption of 12,286 million gallons. At Tytam Tuk a fracture occurred on the suction box of No. 4 engine. A new casting was made by Messrs. Lee Tung Wo, tested and put into use. A second fracture occurred later on the H.P. valve chamber of No. 3 engine. An attempt was made to repair by welding but this proved unsuccessful and towards the end of the year tenders were invited for the manufacture of a new casting. 220. Preparations were in hand for the installation of stand-by Perkins diesel engines, purchased locally, at Aberdeen Upper and Lower Pumping Stations. 221. Filtration and Treatment: -Some 12,310 million gallons of water were filtered at twelve filtration plants. New rapid gravity filters at Eastern and slow sand filters at Wong Nei Chong were brought into use during the year. 222. During the year samples of water were examined regularly by the Government Pathologist and by the Government Chemist, Details of result are given in Table IV. 223. Pumping Filtered Water:-A total of 1,144 million gallons of filtered water were pumped out of a total consumption of 12,286 million gallons. 224. A stand-by Ruston diesel engine was installed at Garden Road Pumping Station. This engine was a pre-war engine which was surplus to requirements. 225. The new Eastern Pumping Station was brought into use. A description of this station is given in paragraph 255. 226. The new Diesel engine plant ordered under Indent No. 48/48 for Pokfulam Road Pumping Station to replace the steam engine plant had not arrived by the end of the year.

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218. The damaged 21′′ cross harbour main (referred to in paragraph 200 of last year's Report) was replaced by a new 50 foot length with an expansion joint. The pipe was pro- tected by concrete sheathing and lining. Preparations were in hand for the replacement of the corroded muntz metal joint covers by cast iron covers. The welding up of leaking joints on the 24′′ Shing Mun Trunk mains was continued throughout the year.

220. Preparations were in hand for the installation of stand-by Perkins diesel engines, purchased locally, at Aberdeen Upper and Lower Pumping Stations.

221. Filtration and Treatment: -Some 12,310 million gallons of water were filtered at twelve filtration plants. New rapid gravity filters at Eastern and slow sand filters at Wong Nei Chong were brought into use during the year.

222. During the year samples of water were examined regularly by the Government Pathologist and by the Government Chemist, Details of result are given in Table IV.