CAMT Pool and Spa Maintenance 3

Question 1

What should be added to pool water when calcium hardness is too low (below 150 ppm)?

Accepted Answer

Calcium chloride

Answer

Muriatic acid

Answer

Sodium bicarbonate

Answer

Chlorine shock

Question 2

What is 'shocking' a pool?

Accepted Answer

Adding a large dose of oxidizer or chlorine to break down combined chlorine and contaminants

Answer

Rapidly dropping the water temperature

Answer

Running the pump at maximum speed overnight

Answer

Draining and refilling 25% of the pool water

Question 3

At what approximate water temperature does algae growth in pools become significantly more likely?

Accepted Answer

Above 60°F (15.5°C)

Answer

Below 50°F (10°C)

Answer

Above 85°F (29°C)

Answer

Algae grows equally at all temperatures

Question 4

What does 'combined chlorine' (chloramines) refer to in pool water testing?

Accepted Answer

Chlorine that has bonded with nitrogen waste compounds and is no longer effective as a sanitizer

Answer

The total amount of chlorine added over a season

Answer

Chlorine that has been stabilized with cyanuric acid

Answer

The reading from two separate test kits averaged together

Question 5

What is the purpose of a pool Safety Vacuum Release System (SVRS)?

Accepted Answer

To prevent drain entrapment by releasing suction when a blockage is detected

Answer

To automatically add chlorine when levels drop

Answer

To shut off the pump during lightning storms

Answer

To regulate water temperature automatically

Question 6

How should a pool maintenance technician document pool water chemistry readings?

Accepted Answer

In a pool log recording date, time, test results, and chemicals added

Answer

Only when results are outside normal range

Answer

Verbally reporting to the property manager weekly

Answer

Only when requested by a resident complaint