Is alkalinity increaser the same as baking soda? Baking Soda isSodium Bicarbonate If your pool water alkalinity is lower than it should be, one way to increase it is to go to your local pool supply store and pick up a bottle of "alkalinity increaser." But did you know alkalinity increaser...
There are two main ways to lower the pH level in a pool. The two chemicals used to dose swimming pools and decrease pH are sodium bisulfate and muriatic acid.