124 



SEWER DESIGN 



such a tendency is soon suppressed, or offset by the effect of 

 the growth of the city. Thus Fall River, as shown by the 

 diagram of Fig. 31,* had in 1874, a per capita consumption 



5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 

 Percent ri"- <' TapsMetered 



FlG. 30. 



of 84.5 gallons. This decreased steadily with the introduction 

 of meters until b 1887, with 70 per cent of the services metered, 



* From figures quoted by Mr. Fuertes, p. 155. 



