If you don’t live in Italy with access to crisp, Italian tap water, like I do, a bottle of San Pellegrino will do just fine but will require an extra day or two of decantation to release all the CO2. We don’t want any more gas in our dogs than they already have. Also, try not to serve this to your dogs on a rainy day. The fresh rain air smell will combat the crispness of your Italian Alpine Spring tap water. Che schifo!