THE LOAD FACTOR 



35 



that size and quantity in cents per 1000 gallons is ascertained 

 by division. The average of these amounts for meters larger 

 than f-inch (giving more weight to those sizes which produce 

 or probably will produce the greater parts of the revenue in that 

 system) is taken as the average addition to the base price for 

 water sold through large meters. This amount in cents per 

 1000 gallons is then added to the base rates for all quantities 

 taken by intermediate and manufacturing users. 



The line drawn to represent this rate will normally be not 

 far from the line previously drawn for the quantity of 300,000 

 gallons per annum with f-inch meters and the two lines should 

 be connected at or near that point. 



The line showing combined base and average service charges 

 may be made heavier than the base line. The heavy line, 

 representing the approximate average rates paid by takers, 

 should be used in comparing rates. 



EXAMPLE OF CALCULATION 



The average addition to be made to base rates for plotting 

 all intermediate and manufacturing takers is thus 1.33 cents. 



If every taker could be induced to use a meter graded 

 accurately to the rate of his consumption, the rate per thou- 

 sand gallons could be made so much greater and the graded 

 service charge for large meters dispensed with. But with the 

 actual tendency of takers to desire and demand meters larger 

 than are really necessary, the graded service charge furnishes 

 the most practical and the most equitable means of distrib- 

 uting the load. 



