A substance characterized by an excess
g. Hydrochloric acid
h. Hypochlorous acid
A substance with an equal number of
The portion of chlorine that remains
uncombined with matter in the pool water.
26. _____ One of the acids formed when chlorine is
added to water. It is useless as a disinfecting
27. _____ The amount of chloramines in pool water.
28. _____ One of the compounds formed when chlorine
is added to water. It kills bacteria rather slowly.
The best pH range for swimming pools is _______________________.
Which of the following is NOT a true effect of pH on swimming pool operations?
a. A pool with a pH of 7.6 to 8.0 causes the least eye irritation.
b. It takes more chlorine to kill bacteria at a high pH level.
A high pH encourages the growth of algae.
d. A pH of 7.0 or below can corrode metal pipes and dissolve mortar and