Which component of pool maintenance helps to prevent staining of pool walls and surfaces?

Maintaining a proper alkalinity balance is crucial in pool maintenance for preventing staining of pool walls and surfaces. When the alkalinity is within the ideal range, it helps stabilize the pH levels of the water. High or fluctuating pH levels can lead to the precipitation of minerals, which can settle on surfaces and cause stains. Furthermore, a balanced alkalinity helps prevent corrosion or scale formation, both of which can contribute to unsightly deposits on the pool's surfaces. Thus, ensuring proper alkalinity plays a significant role in protecting the aesthetic quality and longevity of the pool's surfaces.