Ill. Admin. Code tit. 77, 890, Subpart M, Appendix A G
Current through Register Vol. 48, No. 25, June 21, 2024
Diameter of Pipe (inches) | Maximum Number of Drainage Fixture Units (D.F.U.) That May be Connected to Any Portion of the Building Drain | |||
Grade per Foot | ||||
1/16 Inch | 1/8 Inch | 1/4 Inch | 1/2 Inch | |
4 | - | 180 | 216 | 250 |
5 | - | 390 | 480 | 575 |
6 | - | 700 | 840 | 1,000 |
8 | 1,400 | 1,600 | 1,920 | 2,300 |
10 | 2,500 | 2,900 | 3,500 | 4,200 |
12 | 3,900 | 4,600 | 5,600 | 6,700 |
15 | 7,000 | 8,300 | 10,000 | 12,000 |
Ill. Admin. Code tit. 77, 890, Subpart M, Appendix A G