Omaha Municipal Code § 49-925 Vacuum drainage system.
Sec. 49-925. - Vacuum drainage system.
A vacuum drainage system (VDS) shall be considered an alternative drainage system. A vacuum drainage system may be installed provided all of the following conditions are met:
(a) The vacuum drainage system shall be limited to supermarket freezer and cooler display condensate drain collection and disposal. All other uses shall require a waiver issued by the plumbing board.
(b) Vacuum drainage systems, including piping, tank assemblies, vacuum pump assembly and other components necessary for the proper function of the system shall be engineered and installed in accordance with the vacuum drainage system manufacturer's most current specifications/recommendations.
(c) Plans and specifications for the vacuum drainage system shall be sealed by a mechanical/plumbing engineer licensed to practice in the State of Nebraska.
(d) Plans and specifications shall be submitted to the city permits and inspections division for review. Plans shall be of sufficient detail to allow review and shall include, at a minimum, the following:
(1) A floor plan showing the location of all equipment discharging into the vacuum system.
(2) System inlets.
(3) Vacuum piping system.
(4) Pipe sizes and materials.
(5) Locations of isolation valves.
(6) Location of cleanouts.
(7) Location of the vacuum central collection system.
(8) Connections to the gravity drainage system.
(9) Gravity drain piping sizes and materials.
(10) Penetrations of rated walls.
(11) Ceilings and floors.
(12) Any required vent piping.
(13) A copy of the manufacturer's printed installation instructions.
(e) The engineer of record shall perform site observations to confirm that the vacuum drainage system installation conforms to the plans and specifications and shall submit copies of the field reports to the plumbing board.
(f) Piping system shall be labeled "Vacuum Drainage System." Labels shall be placed as required by section 49-512 or at least once per room.
(Ord. No. 40524, § 1, 10-20-15)