1. What is the most common way that germs enter the pool

water and cause potential illnesses?

a) Through germs that naturally live in water

b) Through pool chemicals that react with organic matter

c) Through a person entering the water who is ill or

carrying germs on their body

d) Through animals or birds that contaminate the pool

Answer: c) Through a person entering the water who is ill

or carrying germs on their body

Rationale: According to Multipure, this is the most

common vector of pool water contamination.

2. Which of these germs can cause acute respiratory illness

(ARI) when exposed to contaminated pool water?

a) Legionella

b) Cryptosporidium

c) Giardia

d) Norovirus

Answer: a) Legionella

Rationale: According to Multipure, Legionella is one of the

germs that can cause ARI when inhaled from pool water.

3. How long does it take for chlorine to kill E. coli in pool

water?

a) Less than a minute

b) About 16 minutes

c) About 45 minutes

d) Up to 10 days

Answer: a) Less than a minute