Q 23
P.W.R. Hongkong,
resort to the use of the rider mains. This is the first occasion since 1908 on which it has been found possible to maintain a continuous supply throughout the year.
The total quantity of water stored in the impounding reservoirs on the 1st January amounted to 1,551.3 million gallons, there being 275.5 million gallons in the gravitation reservoirs and 1,275.8 million gallons in the low-level reservoirs requiring pumping. It reached a minimum on the 29th May when the total was 1,168.8 million gallons, there being then 117 million gallons in the gravitation reservoirs and 1,051.8 million gallons in the low-level reservoirs. The reservoirs were at or over their permanent overflow levels for the following periods:
Reservoir Capacity to permanent overflow level. (Million gallons.) Period Tai Tam, 384.80 89 days between 10th July and 13th September. Tai Tam Byewash, 22.36 39 days between 28th July and 7th September. Tai Tam Intermediate, 195.91 236 days between 1st April and 30th November. Tai Tam Tuk, 1,419.00 52 days between 30th July and 19th September. Wong Nei Chong, 30.34 24 days between 5th July and 30th August. Pokfulam, 66.00 40 days between 6th July and 9th September.The rainfall for the year amounted to 76.14 inches (Observatory Record) or 7.02 inches below the average. There were only three really wet months, namely, June, July and August and, during these months, 49.91 inches of rain fell. The dry season set in early, the rainfall for September being only 2.65 inches as compared with an average of 9.79.
The maximum quantity of water impounded in all the reservoirs during the year amounted to 2,118.41 million gallons during August or 33.45 million gallons less than the maximum during 1918.
The total quantity of water remaining in the reservoirs at the end of the year amounted to 1,558.99 million gallons.
The repairs to the second of the two new pumping engines which had been undertaken in 1918 were satisfactorily completed in the Spring and both the new engines were run for several months. The official tests of these engines were carried out in May and July and proved satisfactory, the engines being taken over by Government as from the 13th August. On the 25th December, the base casting on the suction side of the intermediate pump valve plate of No. 3 Engine cracked, putting this engine out of commission. Repairs were put in hand at once, but had not been completed by the end of the year.
No. 1 Engine (Tangye) ran 177 days. " (Simpson) 224 " 2 3 " " 4 " " 17 >" > 73 "JPage 405
Page 406
Q 23
P.W.R. Hongkong,
resort to the use of the rider mains. This is the first occasion since 1908 on which it has been found possible to maintain a continuous supply throughout the year.
The total quantity of water stored in the impounding reservoirs on the 1st January amounted to 1,551-3 million gallons, there being 275.5 million gallons in the gravitation reservoirs and 1,275'8 mil- lion gallons in the low-level reservoirs requiring pumping. It reached a minimum on the 29th May when the total was 1,168.8 million gallons, there being then 117 million gallons in the gravita- tion reservoirs and 1,051 8 million gallons in the low-level reservoirs. The reservoirs were at or over their permanent overflow levels for the following periods:-
Tairam,
Reservoir.
Capacity to permanent overflow level. (Million gallons.)
384.80
Taitam Byewash,
22-36
Taitam Intermediate,
195.91
Taitam Tuk,
1,419.00
Wongneichong,
30:34
Pokfulam,
66.00
Period.
89 days between 10th July
and 13th September. 39 days between 28th July
and 7th September. 236 days between 1st April
and 30th November. 52 days between 30th July
and 19th September.
24 days between 5th July
and 30th August. 40 days between 6th July
and 9th September.
The rainfall for the year amounted to 76 14 inches (Observatory Record) or 702 inches below the average. There were only three really wet months, namely, June, July and August and, during these months, 49 91 inches of rain fell. The dry season set in early, the rainfall for September being only 2·65 inches as compared with an average of 9.79.
The maximum quantity of water impounded in all the reservoirs during the year amounted to 2,118 41 million gallons during August or 33 45 million gallons less than the maximum during 1918.
The total quantity of water remaining in the reservoirs at the end of the year amounted to 1,558-99 million gallons.
The repairs to the second of the two new pumping engines which had been undertaken in 1918 were satisfactorily completed in the Spring and both the new engines were run for several months. The official tests of these engines were carried out in May and July and proved satisfactory, the engines being taken over by Government as from the 13th August. On the 25th December, the base casting on the suction side of the intermediate pump valve plate of No. 3 Engine cracked, putting this engine out of commission. Repairs were put in hand at once, but had not been completed by the end of the year.
No. 1 Engine (Tangye) ran 177 days.
179
"}
"
(Simpson) 224
""
2 3
"
"
4
"
17
>"
>>
73
"J
Page 405Page 406
No comments yet.
Private notes are available after approval.