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One whole number is 10 times the preceding number. Alkalinity in linear. Using the given parameters, it would take 91.9 oz. or 5.75 pounds of sodium bicarbonate to raise pH from 7.2 to 7.4 with starting total alkalinity of 60 ppm. The new total alkalinity will be 101 ppm.
Best Answer: Raise alkalinity with sodium bicarbonate. Adjust it first, then tweak the pH with soda ash. To lower either one use acid.Muriatic (dilute hydrochloric) is most common. But dry acid is also used.est Answer: Raise alkalinity with sodium bicarbonate. Adjust it first, then tweak the pH with soda ash. To lower either one use acid.