A sewer replacement includes two required parts.
The Nichols Hills building inspections FAQ says city ordinances require all new and replacement sanitary sewers to include two-way directional cleanouts alongside a backflow preventer.
Nichols Hills: building inspections FAQ ↗Ask about the cleanout and backflow preventer when you discuss a sewer line replacement, and confirm permit and inspection steps with the city. This website does not represent a city referral or partnership.
Applies to properties inside Nichols Hills city limits. A mailing address alone does not confirm which city's rules apply.