In accordance with instructions} from the Shanghai City Government, construction was begun in Septem: ber, 1995, by the Greater Shanghai City Trust but completion of the plant has been delayed for various Feasons..
Messrs. C. Luthy & Ca, S.A, designed the plant, ond itis pointed out that the utmost care has been taken from the hygienic as well as economic point of view. It is not only the most up-to-date waterworks as far as equipment is concerned, many unique features are introduced to sult the local peculiarities, "The cost of the construction has been put at $700,000, including. the distribution pipe not. "It may exceed this amount when the plant is finally completed. The area of "supply covers Tungkadoo in the south and the Yang King village in the north, embracing the factory and the most densely populated districts. Tt runs leven kilometres from one end to the other.
"The raw water intake is situated at} the Vu Loong Wharf. Here the water is deep and the locality is free from drainage.
The Pumphouse 'The pump house which takes. in water from the Whangpoo resis on recast reinforced conerete piles' driven into the ground approximately 40 fect off the shore, Two pumps fare placed inside with enough room for 2 third one.
The water is taken from the river to the coagulation tank (pre-fter), in the plant proper-about 320 yards from the shore through an under-round pipe 500 min, in diameter. As the water goes into the coagulation, alum is added with a special machine. The floors of the different sections of the coagulation tank are in the shape of a reversed Pyramid, so that! mud, which settles down, may be easily drained. The drainage is 800 min. in diameter and runs in parallel with the raw water intake pipe, The Tank {s divided Into two independent halves. Not only can the different] sections of the basin be drained conveniently without interrupting the Process of settling but they may be: Biven a thorough periodical cleaning without interruption to output, From the coagulation tank, the water goes to the rapid sand filters. With perforated floor, the filters are five in number so that when three are occupied in the process of fitera~ Eon, the other two may be washed. The process of cleaning Is made simple by a carefully arranged de sign: the Alters being washed by ersing the flow of water which then comes {rom a clean water tower, The Reservoir To make the water germ-free, cer= tain amount of chlorine is put through.
chlorinator, By gravity, the water flows from the rapid sand fiters to the reservoir which is underground to keep the temperature even and Jsuitable for consumption. With a fenpacity of over 800,000" gallons, it offers approximately 30 per. cent. storage of the daily output, Like the Coagulation, the "reservoir is also divided into two parts to allow pene ical cleaning.
Tu the clean water pump house, which is covered with tiles In order to ensure cleanliness, two pumps are Installed with enough room for. third pump. At present, one pump is able to meet daily requirements while the second one, which is comparative.
smaller, will be used for the night output. With the ald of the con-/sumer's pump, the clean water tower {5 filled with' water continuously.
The clean water tower has a capa~ city of 70,000 gallons and is reinforced conerete ike all the other structures. Its height is approximately $0 fect from the ground.
'The administration building, with Its root covered with blue tiles, houses a group of offices.—In one Foam are kept three metres rogister-Ing' respectively raw' water supply, wash water to the tower and water to the consumers. "Chemists also have their emees in this building.
Text read from the printed page and cleaned; old type leaves the occasional error.