TABLE 1268-1 | |||
Drainage Pipe Diameter and Number of Fixture Units on Drainage System | |||
Size of Drainage Pipe (Inches) | Maximum No. of Fixture Units Individually Vented System | Maximum No. of Fixture Units Wet Vented System | Terminal & Relief Vent Wet Vented System (Inches) |
3 | 35 | 14 | 2 |
4 | 180 | 35 | 3 |
5 | 356 | 180 | 4 |
6 | 600 | 356 | 4 |
TABLE 1268-2 | ||||||
Minimum Grade and Slope of Drainage Pipe | ||||||
Pipe Size (inches) | Slope per 100 ft. (inches) | Pipe Size (inches) | Slope per 100 ft. (inches) | |||
2 | 25 | 6 | 8 | |||
3 | 20 | 8 | 4 | |||
4 | 15 | 10 | 3 1/2 | |||
5 | 11 | 12 | 3 |
Cal. Code Regs. Tit. 25, § 1268
Note: Authority cited: Section 18300, Health and Safety Code. Reference: Section 18630, Health and Safety Code.