Hello,
There are medical conditions that cause puppies to drink too much water. Conditions like kidney disease, or liver malfunction or even poor diets, or diabetes. So, if you think that your puppy is drinking too much water please discuss it with your veterinarian. It is important to say that fresh water should always be left out and available for your pets. In most cases they’re drinking what they need to and withholding or rationing water can adversely affect them.