Read this case study and answer the true-or-false questions:

Wally Waterdown recently got a job as pool operator at the city park. (He just signed up for the upcoming AFO course, too.) Meanwhile, Wally tested the pH and the chlorine level of his water. The pH was fine, about 7.4, but the chlorine was very low. He added quite a bit of liquid chlorine bleach to restore the desired chlorine level, then tested his water again. The chlorine residual (quantity in ppm remaining) was now fine. Which of the following are probably true about his pH.

1. Wally found his pH somewhat higher than before.

2. He should add pool acid to lower the pH back to normal.

3. He'll have to do the whole darn' thing over again soon.

4. There must be a better way than hand feeding, and he'll learn about it in the Aquatic Facility Operator's training.

If you passed this Prep-School final exam, (finding the answers all true,) you're well on your way to becoming an AFO. (If you didn't, you're on your way anyhow, just not so well...) Understanding pH concepts is really important; if you're having trouble, read this prep-school again, read the book assignments, or get some help.

It's worth it. Ask any AFO.

PPOA Prep School :: Your Assignment