Subsection 717.1 of the Uniform Plumbing code is hereby amended to read as follows:
717.1 General. The minimum size of any a building sewer shall be determined on the basis of the total number of fixture units drained by such sewer, in accordance with Table 717.1. No building sewer shall be smaller than the building drain and in no case less than four (4) inches.
For alternate methods of sizing building sewers, see Appendix C. (Amended by Ordinance No. 9806, effective 01-01-2021)