Let's Look at Water (1947)
Overview : This short documentary shows how a city's water supply is purified at a filtration plant. The complex system of the underground mains that supply all parts of the city with water is also illustrated, as is the safeguarding of water supplies on trains, ships and aircrafts.
Release Date : January 1, 1947
Runtime : 21m
Genre : Documentary
Companies : ONF | NFB
Countries : Canada
Keywords : transportation, water supply, urban, water purification, city