@Janneke:
Sorry.. but she hates her crate… and she has to be in it for 8 hours a day... And you don't walk her in the morning...?
I would start with making sure your dog is tired in the morning before you put her in her crate. And maybe you can try to leave her loose in the house so she can move around?
This is not only to you, but I read it so often on this forum that dogs spend entire days in their crates... I just don't understand that people can put their dogs in crates 8+ hours a day (I'm not including nights..)
I agree with Janneke here - if she hates her crate, she may pee in it because she gets extremely unhappy there. Not all dogs need to be crated - I've never had a dog who was crated, and the two I have now are loose when we're gone because Shaye, who was 10 weeks when we got her, always hated it, never changed, and started breaking baby teeth on it. When we leave we leave them with a treat to get their immediate attention, and they usually sleep or keep themselves busy, with no damage or upset. Of course, we aren't usually gone more than 6 hours when we leave them.