10.22. A new transformer-type welding machine was installed at Argyle Street Depot thereby extending the scope and output of the workshops.
Mainlaying
10.23. Work continued on extensions to serve new developments, enlargement of under-sized mains, replacement of defective pipes and alterations necessitated by road reconstruction.
10.24. Approximately 79 miles of pipe varying from 2" to 30" diameter were laid and included asbestos-cement pipes for salt-water flushing supply distribution, as well as galvanized-iron pipes for sub-mains up to 4" diameter, cast-iron pipes up to 18" diameter and steel mains over 18" diameter.
10.25. The more important mains laid other than those in connexion with particular projects were:
(a) 3,600' of 18" cast-iron main in Canton Street, Pitt Street, and Waterloo Road, and 1,900′ of 15" C.I. main in Ning Po Street to improve supply in the Yau Ma Tei area and to supply new development.
(b) 1,200' of 18" C.I. and 1,700′ of 15" A.C. mains to extend fresh- and salt-water distribution to Valley Road Low Cost Housing Estate.
(c) 2,400' of 15″ A.C. mains from Hung Hom Reclamation to the Queen Elizabeth Hospital to complete the salt-water supply for air conditioning and flushing.
(d) 3,100' of 15" A.C. main to extend the salt-water distribution system in Hok Un Street and Ma Tau Wai Road from Hok Un Street to Wu Hu Street.
(e) 2,100' of 10" asbestos-cement main between Blake Pier and Rumsey Street to extend the salt-water system.
(f) A combined length of 2,000' of 18" and 15" diameter mains to extend the fresh- and salt-water distribution systems in the Chai Wan Resettlement Estate.
Service Reservoirs
10.26. All service reservoirs were cleaned and sterilized and inlet and outlet valves tested and overhauled as required. Repairs were carried out to the invert joints of Gardens Service Reservoir, but no major repair works were required at any of the service reservoirs.
Catchwaters
10.27. Little damage was experienced owing to the lack of heavy rain and work was limited to routine cleaning. Some rock trimming and protective works were carried out along the Tai Lam Chung catchwaters.
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10.22. A new transformer-type welding machine was installed at Argyle Street Depot thereby extending the scope and output of the workshops.
Mainlaying
10.23. Work continued on extensions to serve new developments, enlargement of under-sized mains, replacement of defective pipes and alterations necessitated by road reconstruction.
10.24. Approximately 79 miles of pipe varying from 2" to 30" diameter were laid and included asbestos-cement pipes for salt-water flushing supply distribution, as well as galvanized-iron pipes for sub- mains up to 4" diameter, cast-iron pipes up to 18" diameter and steel mains over 18" diameter.
10.25. The more important mains laid other than those in connexion with particular projects were:
(a) 3,600' of 18" cast-iron main in Canton Street, Pitt Street, and Waterloo Road, and 1,900′ of 15" C.I. main in Ning Po Street to improve supply in the Yau Ma Tei area and to supply new development.
(b) 1,200 of 18" C.I. and 1,700′ of 15" A.C. mains to extend fresh- and salt-water distribution to Valley Road Low Cost Housing Estate.
(c) 2,400 of 15′′ A.C. mains from Hung Hom Reclamation to the Queen Elizabeth Hospital to complete the salt-water supply for air con- ditioning and flushing.
(d) 3,100 of 15" A.C. main to extend the salt-water distribution system. in Hok Un Street and Ma Tau Wai Road from Hok Un Street to Wu Hu Street.
(e) 2,100 of 10" asbestos-cement main between Blake Pier and Rumsey
Street to extend the salt-water system.
(f) A combined length of 2,000 of 18" and 15" diameter mains to extend the fresh- and salt-water distribution systems in the Chai Wan Resettlement Estate.
Service Reservoirs
10.26. All service reservoirs were cleaned and sterilized and inlet and outlet valves tested and overhauled as required. Repairs were carried out to the invert joints of Gardens Service Reservoir, but no major repair works were required at any of the service reservoirs.
Catchwaters
10.27. Little damage was experienced owing to the lack of heavy rain and work was limited to routine cleaning. Some rock trimming and protective works were carried out along the Tai Lam Chung catch-
waters.
74
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