There's been a big demand for these little bottles of water in the past few years. Pass Christian resident Richard Payne says he started buying bottled water about eight years ago. He buys about two cases a week.
Payne said, "The bottle, it's great. I have me a section in one of my freezers on my back deck. And I just go out when I'm doing yard work, working around the house, and I can get it."
Buying water is also a matter of convenience for Lyman resident Jessica Riley, who is always on the go with her two young daughters.
"It's just better for them. They can take it in their back pack, take it to school if they want to or on the bus. Or, I can put it in my purse and take it where ever I go," said Riley.
Store manager Faron Cabler says the shelves at Wal-Mart are stocked throughout the day with bottled water. And the demand is even greater this time of year.
Wal-Mart Manager Faron Cabler said, "It's a growing category in the entire market. We're selling a lot of water. I think for health reasons and because it's something that's convenient to get."
But not everyone prefers bottled water over tap. Years ago, John Driver swapped out tap water for bottled water, but he has reverted back to tap.
"I guess 10 or 12 years ago, people started buying bottled water. I messed around and bought a few different types. Then compared it to water out of the tap. And didn't find much difference, so I just went back to tap water," Diver said.
Bottled water sales are expected to increase by another one billion dollars this year with an expected grand tally of about 16 billion dollars in sales.