Frustrated Parsons Russell owner

by David Tyers
(Farnham, UK)

I have a 5 month old Parsons Russell puppy. He refuses to learn to wee outside of the house. We have two other dogs who had both learned to do their business in the garden at this age. He seems incapable of grasping the basics and we just don't know what to do. Anyone have any tried and tested approaches? Many thanks, David