Bottled water retailers are well aware of the quality of our nation's tap water in fact, at least 24 percent of the bottled water we drink is actually filtered tap water. Pepsi's Aquafina and Coke's Dasani, the top bottled water brands in the country, are two of the brands that bottle filtered municipal water.

Bottled water is not recommended to make up infant formula feeds for your baby. This is because it's not usually sterile (free from bacteria) and may contain too much salt (sodium) or sulphate.

Ozone may be added to spring or mineral water during the bottling process as a disinfectant to inhibit the growth of harmful microorganisms. Ozone is also effective in removing objectionable odours and flavours because it breaks down into oxygen which improves taste and other qualities.