I’ve had a guinea pig for seven years. She’s doing great, however, I cannot stand the smell. I tried various bedding and found that the fleece bedding worked quite well. However, I’ve got really old fleece bedding, and it smells intensely of pee. I’ve tried all kinds of ways to try to get rid of the smell. I was wondering if anyone had any advice on something that has worked to get rid of the pee smell from fleece bedding?