Definitions contained in the Uniform Plumbing Code apply to this chapter:

"Drain outlet" is the discharge end of the conversion vendor unit or medical unit main drain to which a drain connector may be attached.

"Main drain" is the principal artery of the conversion vendor unit or medical unit drainage system to which drainage branches may be connected.

"Water-supply connection" is the fitting or point of connection of the conversion vendor unit or medical unit water distribution system to a water connector.