Commercial Pool Contractor Practice Exam

Question: 1 / 400

Which chemical is commonly used to sanitize pool water?

Chlorine

Chlorine is widely recognized as a standard sanitizer for pool water due to its effectiveness in killing bacteria, viruses, and other harmful contaminants. It works by releasing hypochlorous acid when added to water, which is what actually sanitizes the water. Chlorine is not only effective but also relatively cost-efficient and easy to apply, which makes it the go-to choice for many pool management and maintenance professionals.

While other sanitizing chemicals, like bromine and ozone, do have their places in pool treatment protocols and offer specific advantages, chlorine remains the predominant choice in many commercial settings due to its proven track record, familiarity among pool operators, and strong regulatory support for safe use. Its ability to form residual sanitation levels in pool water, combined with a robust history of use, emphasizes chlorine's status as the primary sanitizer in the industry.

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Bromine

Ozone

Hydrogen peroxide

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