Jordan--perhaps someone will chime in--but I wanted to tell you that this is
a very common problem and has been much discussed here, so  Google search of
this group and terms such as "urine" or "Cat Pee" etc. might be helpful. I
have no experience with it except when mine were mad at me and wanted to
send me a message. Good luck.

Simple Solution.

http://www.bramton.com/products_us/stain&odor.htm