Dogs can drink tap water and it will not have any major effects in a short period of time, but it is not recommended to feed them tap water. Tap water contains bacteria, parasites and other substances, and dogs may get sick if they drink it. It is best to give boiled cold water to dogs. Cold water is very healthy and hygienic for dogs.

If your dog drinks tap water directly in winter, the temperature of the tap water is too low, which may cause the dog to catch cold and have diarrhea. Tap water contains a lot of impurities and bacteria and needs to be disinfected again at high temperatures. If your dog drinks tap water directly for a long time, it will make the dog prone to parasites. Therefore, it is recommended to boil the tap water and let it cool before giving it to the dog.