Sounds as if this dog is not a good match for your household. It is unfair to him, and to your family to keep him . Aren't there any adoption places online, where you could upload a picture and find a good home, with a back yard and all he needs to have to make him have the basics that such a dog must have? I have seen such dogs--they are so wonderful in their element, when given their freedom to run and have their energy spent. It would be so much more humane to give him an appropriate home--
Wishing you well----theo