About 2-3 months ago our 4 year weimaraner started urinating in the house. He has never done this since he was house trained as a puppy. we take him out at night before we go to bed (10 pm) and let him out at (4:45am) when we get up. We do not let him drink water an hour or so before bed time. But he is consistantly going to the bathroom in the house almost every night. Any clues on stopping him.[/B]