Illinois Administrative Code
Title 77 - PUBLIC HEALTH
Part 890 - ILLINOIS PLUMBING CODE
Subpart M - INSPECTIONS, TESTS, MAINTENANCE AND ADMINISTRATION
Appendix A - Plumbing Materials, Equipment, Use Restrictions and Applicable Standards
Table L - Horizontal Circuit and Loop Vent Sizing Table
Universal Citation: 77 IL Admin Code § L
Current through Register Vol. 49, No. 13, March 28, 2025
|
Line |
Soil or waste pipe diam. (in.) |
Fixture Units (max. number |
Diameter of circuit or loop vent (in.) |
|||||
|
11/2 |
2 |
21/2 |
3 |
4 |
5 |
|||
|
Maximum Horizontal Length (ft.) |
||||||||
|
1 |
11/2 |
10 |
20 |
|||||
|
2 |
2 |
12 |
15 |
40 |
||||
|
3 |
2 |
20 |
10 |
30 |
||||
|
4 |
3 |
10 |
20 |
40 |
100 |
|||
|
5 |
3 |
30 |
40 |
100 |
||||
|
6 |
3 |
60 |
16 |
80 |
||||
|
7 |
4 |
100 |
7 |
20 |
52 |
200 |
||
|
8 |
4 |
200 |
6 |
18 |
50 |
180 |
||
|
9 |
4 |
500 |
14 |
36 |
140 |
|||
|
10 |
5 |
200 |
16 |
70 |
200 |
|||
|
11 |
5 |
1,100 |
10 |
40 |
140 |
|||
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