Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering this question and others from our Exam Study Guide Series. Take a look at this question on Public Water Systems along with an explanation of the correct answer.
Which ion does ion exchange softening add to the water?
C) Aluminm sulfate
The correct answer is A.
About the author: Drew Hoelscher is the program director of drinking water operations at the Environmental Resources Training Center (ERTC) in Edwardsville, Illinois.