What balance is important for keeping pool water clear of algae?

The correct choice emphasizes the significance of maintaining proper chemical balance and pH levels in pool water management to keep it clear of algae. When the chemical balance is correctly maintained, including sanitizers like chlorine or bromine, it effectively controls algae growth. The pH level, which indicates how acidic or alkaline the water is, should typically be maintained between 7.2 and 7.8. If pH levels are too high or too low, it can hinder the efficacy of the disinfectants used, leading to less effective algae control.

Algae thrives in environments where the water is not properly balanced. For example, if the pH is too high, it can result in cloudy water and promote algae growth. Conversely, if the pH is too low, it can cause corrosion of pool surfaces and equipment while still failing to effectively control algae. Therefore, ensuring the appropriate chemical balance is crucial for preventing algae blooms and maintaining clear, healthy pool water.

The other options, while they may influence water quality to some extent, are not directly related to preventing algae growth. Water temperature and solar exposure can encourage algae growth but are not primary factors in water clarity. Decreasing the circulation duration adversely affects water movement, which is essential for distributing chemicals evenly and