You start all over again, treating him as you would treat a puppy. Watch like a hawk, keep him leashed or tethered, crate him when you can't watch.
Vet check for UTI might be in order. Did he lift his leg?
And please don't zap him for peeing. That is an incorrect use of an e-collar, and teaches him nothing. Might even make him associate peeing with the zap.
Last edited by Sunflowers; 06-11-2014 at 02:22 PM.