CPO Filtration and Circulation Systems Questions and Answers 2

Question 1

What is the standard turnover rate required for a public swimming pool?

Accepted Answer

6 hours

Answer

2 hours

Answer

12 hours

Answer

24 hours

Question 2

At what pressure differential should a sand filter be backwashed?

Accepted Answer

8 to 10 psi above clean starting pressure

Answer

5 psi above clean starting pressure

Answer

15 psi above clean starting pressure

Answer

Only when water clarity visibly decreases

Question 3

What is the primary advantage of a DE filter over a sand filter?

Accepted Answer

Finer filtration capability down to 2 to 5 microns

Answer

Lower operating costs

Answer

No backwashing required

Answer

Longer filter media life

Question 4

What is the purpose of a VGB Act compliant main drain cover?

Accepted Answer

To prevent suction entrapment injuries by meeting flow and size standards

Answer

To improve water clarity

Answer

To reduce chemical usage

Answer

To increase the turnover rate

Question 5

What is the function of a flow meter in a pool circulation system?

Accepted Answer

To verify that the system achieves the required flow rate for proper turnover

Answer

To measure water temperature

Answer

To measure chemical concentration

Answer

To control the pump speed

Question 6

Why are pool return inlets positioned to create a circular flow pattern?

Accepted Answer

To eliminate dead spots and ensure uniform chemical distribution

Answer

For aesthetic purposes

Answer

To create wave action for exercise

Answer

To make the pool easier to clean manually