This is a funny question! Water is drinkable as it is unless your tap water is dirty. If you have bad tasting tap water then I would recommend purchasing a water filter at Wal Mart or something. If you are wanting flavor to your water you can buy stuff like Crystal Light, Gatorade, and even tea packets that come in a little individual package. You just empty them into your water and it flavors an individual glass of water. There are tons of flavor options! You can find these packets by the bottled juice and other drink (like Capri Sun) at your local WalMart.