Branch soil and waste lines.
Omaha Municipal Code § 49-902
in effectSec. 49-902. - Branch soil and waste lines.
A branch soil and waste line may be extended to the first floor to receive the discharge of no more than one water closet and one lavatory (basin), subject to the following provisions (see Figure 902):
(a) The vertical riser shall not exceed 15 feet.
(b) The stack vent may be reduced to 1½-inches with approved reducing fittings. Heal inlet one-quarter bends shall be installed vertically.
(c) When a stack is extended to receive fixtures from floors above the first floor or extended to the first floor to receive more than one closet, the stack shall be run full size. (See Figure 49-902(c).)
(d) A separate waste may be connected to a horizontal or vertical branch below the water closet and extended horizontally and vertically for waste on the first floor and above. Fixture units are not to exceed the branch chart in sections 49-903 and 49-906. (See Figure 49-902(d).)
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(Ord. No. 40524, § 1, 10-20-15)
Source: City of Omaha, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ne/omaha/codes/code_of_ordinances?nodeId=OMMUCOCHGEORVOII_CH49PL_ARTIXSOWAPI_DIV1GE_S49-902BRSOWALIFetched: 10/28/2026