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 J - Size of Vent Stacks

Universal Citation: 77 IL Admin Code § J
Current through Register Vol. 49, No. 13, March 28, 2025

Number of Bathroom Groups

Diameter of Vent Stacks (Inches)

1 or 2

2

3 to 9

3

10 to 16

4

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