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If the dog must learn to pee inside, use special disposable training pads. Absorbent pads set in the same place each time is a good “last resort” for the dog if you cannot get home in time to take him outside. Establish boundaries for where the dog can pee, such as on grass. If they make a mess, communicate clearly and firmly without harsh punishment. Take the dog to the area in which he can pee.
Take your pit bull outside very frequently to pee. Set up an area, whether large or small, where the pit bull should go every time. Take your dog on frequent walks. Pay attention to the dog.