It is no surprise that companies that sell filtered water systems or bottled water are so successful. Americans are scrutinizing what they put into their bodies more than ever, and water is no exception. Experts recommend that people drink eight or more glasses of water a day, so water quality is an important concern.nnThere is a good reason for you to demand high-quality water: it significantly impacts your health. Your body is made up of 60 percent water, so consuming the highest quality possible is one of the best ways to protect your health.