Earlier editions: 2022
Chapter 10 — TRAPS AND INTERCEPTORS
San Francisco Building Inspection Commission Codes § 1001.3 Add the following section
San Francisco Building Inspection Commission Codes · 2026-08 edition · updated 2026-09-23 · San Francisco
Cite as: San Francisco Building Inspection Commission Codes § 1001.3 · Text as of 2026-09-23
1001.3 Placement and Minimum Size of Building Traps. The building sewer or building drain shall have a building trap placed as near as possible to the curb line or immediately inside any subsidewalk basement wall under the sidewalk. Trap size shall be a minimum of 4 inches (101.6 mm).
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