There are three rooms in the large working area of the wagon. Lobby (dressing room), shower room
 with six shower cabines and benches.
Equipment: water-supply system  (water-pressure head installation without tower type, water-heater,
1000 l. tank).
The entrance of the trailer is equipped special easily demountable gangway and a protection. 
Stability  of the wagon-trailer in stationary position is provided  by lay jacks which include the
complete set of the chassis.