ACTUAL COSTS AND CAPACITY OF GASWORKS. 



219 



An overhead tar and liquor storage tank to the dimen- 

 sions given on sketch is provided. It was fixed at this 

 height in order to be able to load tank waggons outwards by 

 gravitation, pending the formation of a siding. A 3-inch 

 cast-iron pipe is carried from this tank for a distance of 



Plan. 

 Fig. 22. Underground Tar and Liquor Tank. 



Fig. 23. Overhead Tar and Liquor Tank. 



318 feet, to fill tanks at a neighbouring siding. Capacity, 

 4,300 gallons. 



An overhead tank (Fig. 24) is provided for water 

 storage, and is fixed close to the boiler and the retort house, 



