TITLE 77: PUBLIC HEALTHHome
PART 890 ILLINOIS PLUMBING CODE
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SECTION 890.670 STRAINERS AND FIXTURE OUTLETS
Section 890.670 Strainers and Fixture Outlets
a) Strainers. All plumbing fixtures other than water closets, urinals with integral traps, and any sink outlet having a disposal unit shall be provided with a strainer. A pop-up waste shall be considered a strainer.
b) Bathtubs - Waste Outlets. The waste outlet for a bathtub shall have a strainer or stopper and shall have an outlet at least one and one-half (1 1/2) inches in diameter.