Sewers constructed shall always be of sufficient grade so that the flows will reach a self-cleansing velocity. The minimum grades of sewers shall be as follows:
Diameter of Pipe (Inches) | Fall in Feet Per 100 Sewer |
Diameter of Pipe (Inches) | Fall in Feet Per 100 Sewer |
6 | 0.65 |
8 | 0.40 |
10 | 0.29 |
12 | 0.22 |
15 | 0.16 |
18 | 0.12 |
24 | 0.10 |
28 | 0.08 |
36 | 0.04 |
(`81 Code, § 50.11) (Ord. 1242, passed 5-25-60) Penalty, see § 50.999