Where bedpan washers are located above each other on more than one floor, a local vent stack is permitted to be installed to receive the local vent on the various floors. Not more than three bedpan washers shall be connected to a 2-inch (50 mm) local vent stack, not more than six to a 3-inch (75 mm) local vent stack and not more than twelve to a 4-inch (100 mm) local vent stack. In multiple installations, the connections between a bedpan washer local vent and a local vent stack shall be made with tee or tee-wye sanitary pattern drainage fittings installed in an upright position.
(Amend Coun. J. 11-8-12, p. 38872, § 259)