pH Increaser

Used to raise pH. The Scientific name is Sodium Carbonate. Sodium Carbonate is typically packaged and sold as "pH Increaser," "pH Up," or "pH Plus." Sodium Carbonate is granular. Read the instructions on the label to determine the amount to add, how it must be added (either diluted in water or broadcast straight from the container), a maximum amount (per 10,000 gallons of water) that can be added at one time, and other precautions.