Dogs drinking tap water for a long time will not affect their health because tap water meets health and safety standards, so dogs can drink it. If they are dogs with a fragile stomach, they can drink warm water. In addition to tap water, dogs can also drink mineral water and purified water, but it is not recommended to drink it for a long time. It is best to drink it alternately, which is better for the dog and less likely to get sick. The dog's water bowl must be cleaned every day to keep the water clean and avoid the growth of bacteria.