If you have a new puppy, you know that they can have delicate systems. Just like a human baby, even small details are very important to their health and well being. Water is one of the most important ingredients to a healthy start for your puppy, and it's important that it's of the best quality.
Just as with people, puppies' water should be clean and fresh. Don't use water from an above ground, untreated or stagnant source because it might carry bacteria and parasites. Well water should be tested for contaminates, especially if you live in a farming community. Bottled spring water is always a safe option, especially if the puppy shows signs of a sensitive tummy, or if you are unsure of your water's quality.
Tap water is usually acceptable, but find out what additives and naturally occurring substances it contains. Most water systems are treated with fluoride and chlorine, and long-term use of these chemicals is under question for both people and animals. Water that has less than 5000 parts per million of solids is fine for pets, but also be aware that high mineral content can have an adverse affect. As with spring water, look for adverse reactions, and switch to bottled water if needed.
Sometimes pet owners think the water is the problem when it is actually the container. Both ceramic and plastic may have contaminants that can be transferred to the puppy through the water. Stainless steel is the safest bet. The water should be changed at least every 4 hours, and the temperature should be sightly cool in the summer and warm in the winter, but be careful that it isn't hot.