CPO Filtration and Circulation Systems Questions and Answers

Question 1

A public swimming pool has a volume of 120,000 gallons.
According to most health codes, what is the MINIMUM required flow rate in gallons per minute (GPM) to achieve the required turnover rate of 6 hours?

Accepted Answer

333 GPM

Answer

28 GPM

Answer

2,000 GPM

Answer

20,000 GPM

Question 2

An operator notices the pressure gauge on a sand filter reads 12 PSI higher than its clean starting pressure. The water clarity in the pool is decreasing. What is the most appropriate immediate action?

Accepted Answer

Backwash the filter according to manufacturer instructions.

Answer

Add a clarifying agent to the pool water.

Answer

Increase the pump speed to force water through the filter.

Answer

Replace the sand in the filter.

Question 3

Which of the following is considered the 'heart' of the pool's circulation system, responsible for moving water through the pipes and equipment?

Accepted Answer

Pump

Answer

Skimmer

Answer

Main Drain

Answer

Filter

Question 4

Which type of filter media is capable of trapping the smallest particles, typically in the 1-3 micron range, providing the finest level of water clarity?

Accepted Answer

Diatomaceous Earth (DE)

Answer

Cartridge

Answer

Sand

Answer

Zeolite

Question 5

When backwashing a high-rate sand filter, what is the final step an operator should perform before returning the filter to its normal 'Filter' mode?

Accepted Answer

Run the system on the 'Rinse' setting for 30-60 seconds.

Answer

Turn the pump off immediately.

Answer

Add new sand to the filter tank.

Answer

Open the air relief valve on the filter.

Question 6

The term 'turnover rate' refers to which of the following?

Accepted Answer

The amount of time it takes for a volume of water equal to the entire pool's capacity to pass through the circulation system.

Answer

The speed at which the pump's impeller rotates.

Answer

The rate at which chemicals are added to the pool water.

Answer

The frequency at which the pool filter must be backwashed.

A public swimming pool has a volume of 120,000 gallons.According to most health codes, what is the MINIMUM required flow rate in gallons per minute (GPM) to achieve the required turnover rate of 6 hours?

A public swimming pool has a volume of 120,000 gallons.
According to most health codes, what is the MINIMUM required flow rate in gallons per minute (GPM) to achieve the required turnover rate of 6 hours?