how to purify the water?!
you need to install a little filtration plant at home, it works and purify the water approx 99 percent
Use dish soap and water. Rinse thoroughly. After washing the containers, submerge them in a solution of 1 teaspoon of non-scented liquid household chlorine bleach to every quart (or liter) of water (making sure the entire surface of the bottle comes in contact with the solution for a minimum of 15 seconds), then rinse thoroughly with a weaker mixture of bleach and water.
Then allow it to settle for at least 30 minutes and pour off the clear water for purifying. This process of filtering and settling is especially important if you're going to be using chemical purification because disinfectants are less effective in cloudy, murky, or colored water.
why dont you buy a water purifyer.
here it tells u which 1 to buy: http://www.waterfiltercomparisons.com/water_filter_comparison.php?d=gp&utm_source=google&utm_medium=cpc&utm_term=water%20filter%20review&utm_campaign=Water+Filter+Terms+SP&mkwid=sggP6HXmt&pcrid=9481672801
Go to a camping store or an army surplus store and buy purification tabs. A few drops of bleach can also work in a pinch.