A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should she do to correct this situation?

add acid

its add acid it worked for me

Add acid

for apex the answer is add acid

add acid for apex

http://www.poolwizard.net/problems/ph.htm

add base!!!

add base

money was right i got the answer wrong when i put add base

Add acid d u mean kids trying make it wrong for everyone trust me Im no hater 😄