Bottled water definitely has its adventages if tap water in your area has not met the standard quality for drinking. There are two choices which will give you clean and safe water to drink at home :
1. Buy bottled water
2. Buy a water filter or set up water filtration system for a long term investment which will be cheaper and produce the same result as purified bottled water.
I'm sure that there are some good brands in the market but you have to do a little research for it. ( the company which do not use tap water to fill the bottle, or any other harmful chemicals) Bottled water can also give you many choices such as mineral water, spring water, etc.. however you like it.
Bottled water or tap water?
How to choose the best kind of bottled water