330 



WATERWORKS OF EAST LONDON. 



the old reservoir through the three old rising- mains, which will 

 be embedded in one concrete stringer. 



When the new scheme, which is now being carried out, was 

 approved by the Administrator, the question as to whether or 

 not we should pump direct by steam or by electricity was reserved 

 for the decision of the Government. Tenders were invited for 

 a steam pumping plant and an electrically-driven plant. Ultimately 

 the Electrical Engineer (Mr. Lambe) and I recommended the 

 Council to adopt the electrically-driven plant. This recom- 

 mendation was approved by the Town Council and the Adminis- 

 trator, and the tender of Messrs. Blane and Co. was accepted 

 for an electrically-driven pump to deliver i,6oo gallons per minute, 

 to be built by Messrs. Glenfield and Kennedy. The amount of 

 the tender was £7,320. 



I think the joint report which contained this recommendation 

 may be of interest to engineers and others who have to choose 

 a pump for a similar service. I, therefore, attach it to this 

 short paper. (See p. 339.) The question having again arisen as to 

 whether or not it would be better to instal an electrically-driven 

 centrifugal pump, rather than move the triple expansion steam 

 pump from the existing pumping station to the new, it has been 

 decided by the Council to call fcr tenders for such a plant, and 

 subsequent to their receipt to submit the matter for the decision 

 of the Government. 



Provision has also been made in the scheme for considerably 

 augmenting the distribution mains in town. The whole scheme 

 was designed by the writer, and is estimated to cost £163,480. 



The total length of mains in the reticulation system of the 

 town is 27.9820 miles, and the length of the special fire mains 

 is 12.819 miles. 



The total capital value of the old waterworks is £104,026 

 IS. 3d. 



No reliable figures are available as regards population, 

 consumption, and revenue in the earliest years of the under- 

 taking, but it may be interesting to institute a comparison covering 

 the last ten years, which is disclosed by the following table : — 



