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OCP - PHTA ONLINE FINAL EXAM QUESTIONS AND ANSWERS| 2026/2027 UPDATED 1. A cloudy green pool is most commonly associated with: A. Algae growth B. Calcium hardness C. Iron deficiency D. Low temperature Answer: A — Algae growth. Green, cloud

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OCP - PHTA ONLINE FINAL EXAM QUESTIONS AND ANSWERS| 2026/2027 UPDATED 1. A cloudy green pool is most commonly associated with: A. Algae growth B. Calcium hardness C. Iron deficiency D. Low temperature Answer: A — Algae growth. Green, cloudy water is commonly associated with algae. 2. What is the purpose of breakpoint chlorination? A. Increase calcium hardness B. Remove chloramines C. Lower total alkalinity D. Increase cyanuric acid Answer: B — Remove chloramines. 3. Cyanuric acid primarily protects chlorine from degradation c

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OCP - PHTA ONLINE FINAL EXAM QUESTIONS AND ANSWERS|
2026/2027 UPDATED
1. A cloudy green pool is most commonly associated with:

A. Algae growth

B. Calcium hardness

C. Iron deficiency

D. Low temperature



Answer: A — Algae growth.

Green, cloudy water is commonly associated with algae.



2. What is the purpose of breakpoint chlorination?

A. Increase calcium hardness

B. Remove chloramines

C. Lower total alkalinity

D. Increase cyanuric acid



Answer: B — Remove chloramines.



3. Cyanuric acid primarily protects chlorine from degradation caused by:

A. Rain

B. Bather waste

C. Ultraviolet sunlight

D. Calcium



Answer: C — Ultraviolet sunlight.

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