A sewer is commonly designed to attain self-cleansing velocity at
a) peak hourly rate of flow
b) average hourly rate of flow
c) minimum hourly rate of flow
d) sewer running half full
A sewer is commonly designed to attain self-cleansing velocity at
a) peak hourly rate of flow
b) average hourly rate of flow
c) minimum hourly rate of flow
d) sewer running half full
