340 WATERWORKS OF EAST LONDON. 



We are in substantial agreement in regard to these estimates, except- 

 ing that the Electrical Engineer thinks that the provision of greasers 

 with the electrical plant is unnecessary. These are estimated to cost 

 ii02 17s. 2d. per year. Moreover, he is of opinion that the difference in 

 the cost of lubricants would be greater than that shown by the manufac- 

 turers, which is the basis that has been adopted in the estimates. 



The City Engineer has set down £50 per year more for the mam- 

 tenance of roadways under the steam pumping scheme than under the 

 {•lectrical. . 



Waterbound roads soon go out of repair unless there is tramc on 

 them. On the other hand, it may be that the cost of repairs with heavy 

 €oal "traffic would be somewhat greater than that estimated. 



It will be noticed that should there be a slight increase of cost under 

 the steam pumoing scheme on any of these items, the difference between 

 the total annual cost of the plants would be wiped out. 



The City Engineer desires to emphasize that the Buffalo Water- 

 works scheme is based upon being able to abstract water from the Buffalo 

 River night and dav, whenever it is there in suitable quantity and 

 quality it is therefore, absolutelv necessary that the power should be 

 available night and day and every night and day whenever needed. 

 Further it is. of course, understood that the agreement between the 

 Electrical Department and the Waterworks Department as regards 

 cost of the current should have all the force and effect of a legal contract 

 The charge is not to be increased excepting on the basis of the cost of 

 coal and it is to be reduced when the cost of coal goes down. Ihe 

 basis of this increase or decrease is to be at the rate of .03d. per is. per 

 ton on the increase or decrease on the mean cost of coal. 



The Electrical Engineer is satisfied that under the electrical pumping 

 scheme the electrical plant with all its accessories proposed to be supplied 

 by Messrs Blane and Co. is adequate. As, therefore, there would appear 

 to be no advantage in adopting the scheme involving the greater capital 

 expenditure and on general grounds, we recommend you to accept the 

 tender of Messrs. Blane and Co. for the electrically driven pumps, subject 

 to the guarantees, etc.. contained in their letter dated 2/7/18, and subject 

 to the consent of the Provincial Government. 



We have the honour to be, Gentlemen, 

 Your obedient servants, 

 » J. MoRDY Lambe. 



Electrical Engineer. 

 J. Powell, 



City Engineer. 



The following schedules give details of cost of annual working of 

 tlie plant : — - 



Ste.\m Plant. ^ ^- ^• 



Oils, as per list hereunder 64 o o 



Waste. 6 cwt. at 70s. per cwt. 2100 



Spares for Engine and Pumps, as list ^°° 



Spares for Boiler, as per list 00 o o 



Spares for Economiser, per list 35 o 



Fwd (assumed calorific value 12,500 BTU) 2,785 o o 



Wages of Staff per annum ^'"5 ° ° 



Total per annum ^4.150 o o 



Gallons pumped per annum, allowing 23^ hours run per day, 823,440,000. 



Motes. 



In getting out above we have based on our experience of the engines 

 we supplied to Glasgow Main Drainage, which have been running since 

 1910. and we have allowed for the following : — 



