Hi there Besnier! What exactly is the gap involving the litter box plus the cats? In point of fact the Litter Robotic will make noise but isn't that noisy both. My cat obtained utilized to that sounds and she would seem to be familiar with the litter box is cleaning https://thesocialdelight.com/story5738937/the-smart-trick-of-robotic-pet-cleaning-that-nobody-is-discussing