Ahhh...sounds very frustrating.   
I fostered a male that I had to use a belly band with.  He marked inside and marked outside.  I bought the thick maxi pads with wings from Costco, but I still had to change the pads all the time and I had to wash his belly down all the time.   
Is there a reason that he pees in the house?  Was he always Potty Trained outside?  Do you give him a really good treat for doing potty outside?  Maybe you have to start back at the basics.   
I would try not using the Belly Bands anymore, b/c he obviously is using it wrong, and what you are doing is 'training' him that he can do potty in the belly band.        |