Hi everyone, I have three cats and until March of this year they used to do their business in my backyard (they stopped using their litterboxes completely so I removed them about two or three years ago because they were just taking up space), recently I decided to reintroduce them to their litterboxes because I think it's better for them to use them and I can monitor their movements, now my problem is, the smell is too strong, I had forgotten how strong the smell was! I'm thinking of buying a litterbox with a top entry but my issue is that they're very expensive! One of them costs the same as my three separate litterboxes, so I'm not sure if buying three of those it's worth it because a) space, b) money. Would it be possible to have just that one for my three cats? I'm open to any recommendations, thank you!