digging the litter almost completely out of the LK then just sitting on top

[zenman]

I have 2 cats that are bro (Leo) and sis (Simba) from same litter and are 7 months old. Both have shared a large covered pan in the bathroom right next to the toilet since they were litter trained with no problems at all. Simba is a digger. I have tried different depths of litter and no matter what she is digging to the bottom to the point that there are scratches in the bottom of the pan and she looks like she was in a dust storm. I just purchased the LK and placed it in place of the normal pan and put away the old one like instructed. Leo seems to have no problem, but Simba was just digging the litter almost completely out of the LK then just sitting on top of the LK all dusty. She does not go, she just sits there. I tried more litter / less litter, same thing. I sat there with her trying to encourage her until she got to the point of letting me know she had to go but wouldn't use the LK. I reset up the old box and away she went like normal (Also the digging to china part.) HELP !

[Kimura]

It's normal for them to hold on to it for a while, especially when it's new or they're at a new stage. She'll go eventually, you just have to wait it out the first time round!

My boy is also a digger, and even now with no litter, he still ferociously 'digs' the toilet seat when he's done. I wouldn't worry too much about it at this point though - first off, just make sure she's using the LK (and nowhere else!) and focus on SLOWLY getting through the stages. Once you're nearing the green stage, you can start VERY SLOWLY reducing the amount of litter. The more litter you can give her right now, the better - even if it makes a mess! Red stage is DEFINITELY the messiest! Additionally, by giving her back the litter tray whenever she asks for it, she's training you to give her what she wants.

Hope this helps, and good luck!