It is basic or alkaline. On the pH scale of 0 (zero) to 14 with 7 being neutral, pure water has a pH of 7.0 at 25 °C (77 °F). Less than 7 is acidic and more than 7 is basic, since pH is the inverse...
you can increase the temperature, also if you want to increase the chemical reaction in a solution, you can add an isotope, like iodine to you're solution.