I need help. I have a 6 mo old Shih zu / Pickineese mix that is trained to a puppy mat in the house as long as she is in the room with the mat. If we take her into another room she will pee without any warning. We take her outside every hour or so and she will still pee in the house even after she has gone outside. She doesn't bark or whine or give any singal that she needs to go.
I am soooo frustrated.
Any suggestions?

2nd question: I have read several times about having a crate to train your dog with. I have a dog carrier that is about the size of the dog. If I purchase a crate to keep her in durring the day when I am out (now she is in the laundry room), how big should the crate be? And do I keep a puppy pad in the crate with her or does this just prevent her from training to go outside?