CPI Spa & Hot Tub Specific Requirements Flashcards

What is the significance of Total Dissolved Solids (TDS) levels in spa water?

Answer: High TDS reduces sanitizer effectiveness and requires dilution or drain/refill

As TDS rises above recommended levels, sanitizer efficiency drops and the water becomes corrosive or scaling, necessitating partial drain/refill.

What is an appropriate pH range for a public spa?

Answer: 7.2–7.8

A pH of 7.2–7.8 keeps spa water comfortable for bathers and allows sanitizers to work at peak efficiency.

Which type of barrier is required around a public spa if it is not inside an enclosed building?

Answer: A 4-foot minimum barrier that meets pool fencing codes

Most state codes require at least a 4-foot barrier with self-closing, self-latching gates around outdoor public spas to restrict unsupervised access.

A CPI inspector notices that a spa's water temperature gauge reads higher than the actual water temperature. What is the concern?

Answer: Bathers may be exposed to temperatures exceeding safe limits without realizing it

An inaccurate low gauge reading could mislead operators into allowing water temperatures above 104°F, posing a hyperthermia risk to bathers.

What feature distinguishes a spa's circulation system from a standard pool circulation system?

Answer: Spas use jet pumps in addition to a separate circulation pump

Spas commonly have a dedicated high-flow jet pump for hydrotherapy in addition to a slower circulation pump for filtration and sanitation.

When inspecting a spa's control panel, what should a CPI inspector verify regarding the air blower?

Answer: That the blower has a timer shutoff to prevent prolonged air injection

Blowers should have an automatic timer so they do not run indefinitely, which can cool the water and introduce unsanitized air over long periods.