Certified Pool Operator Practice Test

What is the ideal ppm range for total alkalinity in plaster pools?

60-80 80-120 100-140 120-160

Correct Answer:

60-80

Explanation:

The ideal ppm (parts per million) range for total alkalinity in plaster pools is 60-80 ppm. This is because a total alkalinity level below 60 ppm can lead to acidic water, which can cause damage to the pool surface and equipment. On the other hand, a total alkalinity level above 80 ppm can result in cloudiness and scaling in the pool water. The other options, while within the recommended range, are either too high or too low and can potentially cause issues with the pool water chemistry. Therefore, option A is the most suitable range for maintaining proper total alkalinity in plaster pools.

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