Okay! Finally! A water dispenser that my cat started using within 10 days. But maybe he finally understood after all these attempts! The fact that the reservoir is round allows us to avoid the problem of an oval reservoir that, if it is not perfectly aligned with the grooves of the base, is no longer sealed (follow my gaze on the super beautiful snail model that I had to return).
Moreover, the sphere does not extend beyond the part where the cat can drink, hence maybe less fear for my timid cat.
Everything is made of plastic, obviously.