The train to be emptied is moved onto the track adjacent to the apron where the emptying and, if necessary, rinsing stations are located.

After connection by means of flexible hoses (effleunt / potable water / clean water / chemical product as required), the emptying cycle starts and stops automatically.

The effleunt and the tank rinsing water are sucked into an intermediate storage tank and then discharged to a collector tank, a recyling station or direct to the foul sewer.