Backwater valves.
Municipal Code of Chicago § 18-29-1002.1.5
in effect18-29-1002.1.5 Backwater valves.
See Section 18-29-715, Backwater Valves.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2692599Fetched: 10/24/2026
