Do you have a bébé-jou Sense bath or are you planning to get one? Then it might be a good idea to get a bébé-jou Drain Hose With Coupling. This drain hose has a nifty coupling system that detaches with a quarter turn. The Hose fits perfectly in the custom made furrow to safely keep it in place.
 
Characteristics
Goes together with bébé-jou Sense baths and bath stands.
Materials Coupling: PP + TPE
Material Hose: PVC
Measurements: 70,0 x 16,0 x 16,0 cm