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Municipal Code of Chicago § 18-29-606.5.4.2
in effect
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18-29-606.5.4.2 Size. Each sludge drain pipe shall be equal in size to the inlet pipe but need not exceed 2 inches (50 mm) and shall be provided with a control valve with a clear waterway equal in area to that of the sludge drain pipe.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2691673Fetched: 10/24/2026

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18-29-606.5.4.2 | Corpus