The bucket is so far fine for clumping litter. Everything works very simple and nothing stinks more. It is very important in this context a good cat litter (I assume Filiton). However, I find the opening for entering larger lumps bit small. It is better, therefore, several times to clean the litter box a day, so that the cat not the lump zerscharrt during the day. Muddy masses can namely not fill, without smudging everything. In addition, you should make sure that bags down very well zuzuknoten and not to save for convenience or to bags to collect too long. Dear often empty and tighten bag. The blade - holder can be taken off well and reinigen.Fazit: I would buy for my circumstances the bucket again.