Will Baking Soda Lower Cyanuric Acid . Dilution is easier said than done. Try draining one quarter or one third of the water from the pool and refill. Green water after Chlorine Shock, Muriatic Acid, Baking Soda, etc. pools from www.reddit.com The chlorine gets spent in neutralizing the. Fill the pool back with fresh water. With a ph level of 9, baking soda is one of the most popular—and easiest—ways to alkalize your drinking water.