Abstract: A wet cell arrangement for a carriage body of a rail vehicle is provided. The carriage body includes two wet cells which are bounded in each case on one side by a functional wall. The functional walls are arranged in a manner spaced apart from and facing one another. Jointly useable supply and disposal lines are arranged in an intermediate space between the two functional walls of the two wet cells.

Abstract: A rail vehicle has at least one sanitary unit in which a WC device with an outlet pipe is to be installed. A car-body-side waste water pipe connection for connecting to the outlet pipe is provided. An intermediate pipe element is attached to the sanitary unit such that one side of the intermediate pipe element is used for a connection to the outlet pipe and the other side is used for a connection to the waste water pipe.

Abstract: A vacuum-toilet arrangement for a passenger car of a railroad vehicle is provided. The arrangement includes two WC cubicles which are connected to a joint vacuum unit.