Which is the best pure water in Pingliang

All very good. Pingliang pure water have 汭龙泉纯净水, in Pingliang City, Chongxin County, Binhe East Road, Ruihe Jiayuan 26 store; Tianchi pure water, in Huating City, Huancheng South Road, Huayan Hotel, about 210 meters south; Qingquan pure water company, in Jingchuan County, Settlement Street and the West Ring Road intersection to the northwest about 80 meters; and so on.