its quite easy to do. chins usually pick a place to urinate. find that place, get a litter box [i have a pryex glass oblong] put your bedding in it, and on the very top of the bedding, put the bedding that has urine on top of it.. when you change the bedding from the litter box, just always [until they learn] to put a bit of soild bedding on top of the clean bedding..