1957-1958 — Page 62

of water pumped is due to the additional supplies made available by the Tai Lam Chung Scheme. All the raw water from the new reservoir had to be pumped to the filters in the first case and later repumped in one or more stages according to the levels of the service reservoirs being supplied.

Waste Detection

320. Work continued on tracing visible leaks, checking cases of high consumption, preventing the use of water for unauthorized purposes and attending to complaints. In the latter half of the year the scope of this section was considerably extended; the urban areas were sub-divided into waste detection zones and checks for losses in these areas have been undertaken. Defective valves, stopcocks, mains etc. have been repaired or replaced and the areas retested until found satisfactory. In addition, restriction valves have been tested and selected premises checked for possible leakages into service during restriction periods. As a result of these tests leakages totalling almost 3,800 gallons per hour were discovered and dealt with.

Metered Services

321. The demand for new metered services were again heavy, 4,033 being installed on the Mainland and 2,621 on the Island. The following table shows the position over the last three years:

322. In order to eliminate the excessive overtime working which would otherwise arise as a result of expansion in waterworks activities, it was necessary to increase the workshop labour force during the year, preference in the later stages being given to Royal Naval Dockyard personnel. The number of jobs undertaken increased by 14.1% compared with the previous year; 1,993 orders were executed of which 264 were for other Government departments. 45,103 meters were overhauled by the meter repair shop, which represented over 70% of all meters installed in consumers' premises and an increase of 8.9% over the previous year's figures.

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of water pumped is due to the additional supplies made available by the Tai Lam Chung Scheme. All the raw water from the new reservoir had to be pumped to the filters in the first case and later repumped in one or more stages according to the levels of the service reservoirs being supplied.

Waste Detection

320. Work continued on tracing visible leaks, checking cases of high consumption, preventing the use of water for unauthorized purposes and attending to complaints. In the latter half of the year the scope of this section was considerably extended; the urban areas were sub-divided into waste detection zones and checks for losses in these areas have been undertaken. Defective valves, stopcocks, mains etc. have been repaired or replaced and the areas retested until found satisfactory. In addition, restriction valves have been tested and selected premises checked for possible leakages into service during restriction periods. As a result of these tests leakages totalling almost 3,800 gallons per hour were discovered and dealt with.

Metered Services

321. The demand for new metered services were again heavy, 4,033 being installed on the Mainland and 2,621 on the Island. The following table shows the position over the last three years:

322. In order to eliminate the excessive overtime working which would otherwise arise as a result of expansion in waterworks activities, it was necessary to increase the workshop labour force during the year, preference in the later stages being given to Royal Naval Dockyard personnel. The number of jobs undertaken increased by 14.1% compared with the previous year; 1,993 orders were executed of which 264 were for other Government departments. 45,103 meters were overhauled by the meter repair shop, which represented over 70% of all meters installed in consumers' premises and an increase of 8.9% over the previous year's figures.

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Page 52

of water pumped is due to the additional supplies made available by the Tai Lam Chung Scheme. All the raw water from the new reservoir had to be pumped to the filters in the first case and later repumped in one or more stages according to the levels of the service reservoirs being supplied.

Waste Detection

320. Work continued on tracing visible leaks, checking cases of high consumption, preventing the use of water for unauthorized purposes and attending to complaints. In the latter half of the year the scope of this section was considerably extended; the urban areas were sub-divided into waste detection zones and checks for losses in these areas have been undertaken. Defective valves, stopcocks, mains etc. have been repaired or replaced and the areas retested until found satisfactory. In addition, restriction valves have been tested and selected premises checked for possible leakages into service during restriction periods. As a result of these tests leakages totalling almost 3,800 gallons per hour were discovered and dealt with.

Metered Services

321. The demand for new metered services were again heavy, 4,033 being installed on the Mainland and 2,621 on the Island. The following table shows the position over the last three years:

322. In order to eliminate the excessive overtime working which would otherwise arise as a result of expansion in waterworks activities, it was necessary to increase the workshop labour force during the year, preference in the later stages being given to Royal Naval Dockyard personnel. The number of jobs undertaken increased by 14.1% compared with the previous year; 1,993 orders were executed of which 264 were for other Government departments. 45,103 meters were overhauled by the meter repair shop, which represented over 70% of all meters installed in consumers' premises and an increase of 8.9% over the previous year's figures.

Page 52