# WATER SUPPLY OF A GREAT CITY, THE

WATER SUPPLY OF A GREAT CITY, THE Produced: 1921 Description The original catalog description provided by the Ford Motor Company reads as follows: “If we follow the water along the street through this main, it would come to the surface in this hydrant.” Man opens hydrant, turns on water - diagram showing course of water from pumping station to hydrant. “Water has many uses in every community. For fire protection the supply must be abundant.” Firemen spray burning building. “The intake crib is strong and massive to withstand storms.” Group walking around top of intake crib. “The water flows into the intake crib through a screen.” Screen being raised. “The water flows into the intake crib far below the surface of the lake.” Water inside crib. “From the crib the water flows through tunnels to the pumping plant on the shore. The tunnels are cut out of the solid rock and large enough for a man to walk through.” View inside tunnel. “The water is filtered to free it from impurities. The filters are tanks of sand through which the water slowly seeps.” Filter tanks. “Filtered water is pure, while unfiltered water contains silt and impurities.” “After the water is filtered, it is treated with chlorine which destroys the harmful bacteria. The chlorine gas is forced into the water.” Man checks gauges. “Chlorine in the water is harmless and protects us. For fifteen years the goldfish has lived in this tank of water which is charged with chlorine twenty times stronger than our drinking…

- Kind: Educational
- Year: 1921
- By: National Archives
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/fc-fc-306)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/fc-fc-306?play=1)