Once a male dog pisses in his water bowl, he won't drink out of it or he drinks just enough to stay alive. If you have a male dog that stays drawed up looking and he's wormed good, he's pissing in his water bowl.
Take a bucket and put inside an old tire. He'll cock his leg to piss and hit the tire. I've had alot of dogs do this.
Good stuff! I'm gona have to try this...