Contrary to public opinion, your tap water is probably perfectly safe to drink. Studies have shown that many bottled water brands actually have more contaminants than municipal tap water has! We have used a PUR filter on our faucet for years, and have never gotten into the cycle of buying bottled water week after week. We just fill up our Sigg or Klean Kanteen bottles (we have several of them in different sizes) and head out on our hiking trips or to wherever – we don’t stop and buy plastic bottles full of possibly contaminated water. So if you can remember, pick up some kind of reusable bottle and stop buying the bottled stuff – your tap water is perfectly fine to drink!