If the water is safe for you to drink, then it is safe for your pets. I don't buy into the whole additives and water conditioners that the companies try to sell for a quick buck. As for well water, is it safe for you to drink without boiling it? If so then your pets will be fine too. And like bcr said, if the bottle of water said from a municipal fluoridated water source, it means its from their tap aka water from a faucet.