Internal shower
Before showering, please use the curtain to prevent water from passing through the bathroom door.
Toilet/cassette
Before removing/inserting the cassette in its compartment, make sure that the handle inside the bathroom is closed as explained in the video.
Once you have emptied the cassette, you should rinse it 3/4 times with water and then pour in a mixture of 250 ml of water + 150 ml of toilet fluid (available for purchase at most campsites).