ASCA ASCA Pool Management & Facility Operations

Question 1

What is the recommended free chlorine level for a competitive swimming pool according to CDC guidelines?

Accepted Answer

1–3 ppm

Answer

0.1–0.5 ppm

Answer

5–10 ppm

Answer

10–15 ppm

Question 2

What pH range is optimal for competitive swimming pools?

Accepted Answer

7.2–7.8

Answer

6.0–6.5

Answer

8.5–9.0

Answer

9.5–10.0

Question 3

Under US swimming regulations, what is the minimum water depth required for competitive starting blocks?

Accepted Answer

5 feet (1.52m) at the point of entry

Answer

3.5 feet (1.07m)

Answer

4 feet (1.22m)

Answer

6 feet (1.83m) throughout the pool

Question 4

What is the purpose of lane lines (lane ropes) in a competitive swimming pool?

Accepted Answer

To reduce wave turbulence between lanes and define individual racing lanes

Answer

To keep the water temperature consistent between lanes

Answer

To mark the location of underwater drain systems

Answer

To support timing system sensors

Question 5

What is 'combined chlorine' (chloramines) in pool water and why is it a concern?

Accepted Answer

A byproduct of chlorine reacting with organic matter that causes eye irritation and the 'pool smell'

Answer

A safe form of chlorine that improves disinfection

Answer

Extra chlorine added during super-chlorination

Answer

A measurement of total dissolved solids

Question 6

How often should pool water chemistry be tested at a facility hosting competitive swim practices?

Accepted Answer

At least twice daily, before and during peak use periods

Answer

Once per week

Answer

Only when water appears cloudy

Answer

Monthly by a licensed technician only