CPI Pool & Spa Systems Design & Operation 2

Question 1

What is the minimum required turnover rate for a residential swimming pool?

Accepted Answer

Every 6 hours

Answer

Most codes require residential pool water to turn over completely at least every 6 hours to maintain proper sanitation.

Question 2

Which type of pool finish is most susceptible to staining from metal-rich water?

Accepted Answer

White plaster

Answer

White plaster is highly porous and readily absorbs iron, copper, and manganese stains from water with elevated metal content.

Question 3

A spa blower introduces air into the water primarily through:

Accepted Answer

Air injector jets or manifolds below the water line

Answer

Spa blowers push air through dedicated air injectors or manifold lines that terminate at jets positioned below the waterline to create bubbling action.

Question 4

What does a 'gravity flow' filtration system rely on to move water through the filter?

Accepted Answer

Elevation head pressure from the pool

Answer

Gravity flow systems use the natural hydrostatic head of the pool water above the filter to push water through the filter media without a pump.

Question 5

Which skimmer component prevents debris from floating back into the pool when the pump is off?

Accepted Answer

Weir door

Answer

The skimmer weir door swings up during pump operation to skim the surface and drops closed when the pump shuts off, trapping debris in the basket.

(CPI) Certified Pool & Spa Inspector Practice Test

(CPI) Certified Pool & Spa Inspector Practice Test

CPI Pool & Spa Systems Design & Operation 2