What should a swimming pool worker do if she wants the pool's pH to be 7.2 but when she tests the water she finds that the pH is 6.2?

Answer 1

Baking powder (sodium monohydrogen carbonate, or -bicarbonate) could be added.

Answer 2

To raise the pH from 6.2 to 7.2, the worker should add a pH increaser chemical to the pool according to the manufacturer's instructions. It is important to properly mix and circulate the water afterwards to ensure the pH is evenly distributed throughout the pool. The worker should retest the water after a few hours to ensure the pH level has reached the desired 7.2.