Sessional_Paper_1908 — Page 715

595

The following mains were taken up :—

2,900 feet 4" cast iron pipes in Austin and Macdonnell Roads, for which the 7"

cast iron pipes mentioned above were substituted.

1,000 feet 3" cast iron pipes in Station Street North, from the Pumping Station to the Police Station, Yaumati. This main was laid as a temporary measure in 1901 to enable the supply from the Cheung Sha Wan Intakes to be more fully availed of. The introduction of the gravitation supply from the new works rendered it useless.

The mains connecting the wells, which formed the original sources of supply, with the pumping station were taken up and cleaned preparatory to relaying. This included the taking up of

2,400 feet 7" cast iron pipes. 4,400 6"

严师

85. Tytam Tuk Scheme, First Section.The progress on this work was very slow, especially during the summer months when sickness was prevalent.

(i). Dam.-The dam was completed with the exception of the Valve House and Gangway across the overflow.

The following are the quantities of material used in its construction during the year: --

Cement concrete,

......974 cubic yards.

Rubble masonry facework, Ashlar,

11

19

1024 10,257

feet.

"J

At the close of the year water was impounded in the reservoir up to the level of the overflow..

(ii). Pumping Station. The buildings were complete and the erection of the No. 1 Engine was sufficiently advanced by April to enable it to be used to charge the main for testing purposes. On the occasion of the second test an 18" sluice valve outside the station burst. The valve formed one of a pair an 1, as its failure revealed the fact that the metal of which it was composel was of insufficient thickness, steps were taken to replace both valves. The erection of the No. 2 Engine was completed in May. As mentioned elsewhere, owing to the copious rainfall in September and October, the necessity for resorting to pumping water did not arise and the running of the engines was confined to trials with a view to getting them into thorough working order.

A contract was let to Messrs. Wilks & Jack in December for the installation of the necessary plant and fittings for lighting the station buildings with electric light.

(iii). New Road.--The new road was completed, with the exception of a short length which connects the old and new roads below the Byewash Reservoir, and the setting of the coping stones to the parapet. walls of some of the bridges.

(iv). Access Roads to Pumping Station and Gauge Basin.-The access road to the Pumping Station was completed, and that to the Gauge Basin at the entrance to Tytam Tunnel practically so, only a portion of the surfacing remaining to be done.

(v). Rising Main 18" diameter.-The rising main was completed, 2,236 feet being laid during the year. Only one burst occurred during the testing of it and this involved the removal of one pipe and the substitution of a new one for it.

(vi). Suction Main 18" diameter.-As mentioned in last year's report, the laying of this main was completed in 1906. This also was tested, two bursts occurring and several blown joints. All of these were made good.

86. Tytam Tuk Scheme, Second Section.-The necessary plans an particulars were prepared with a view to calling for tenders for this work, but the Government decided that it was inexpedient, for financial reasons, to proceed further with it and accordingly no further steps in the matter were taken.