Final answer:
Low alkalinity levels in the pool water will cause difficulty in maintaining pH and damage to the pool surfaces.
Step-by-step explanation:
Low alkalinity levels in the swimming pool water will cause the followings:
- A) Ph of the swimming pool water will be difficult to maintain. Alkalinity acts as a buffering agent in the water, helping to stabilize the pH. When alkalinity is low, the pH can fluctuate more easily, making it difficult to maintain the desired pH of around 7.2.
- C) The water will damage the plaster of the pool surfaces. When alkalinity is low, the water can become corrosive and damage the plaster surfaces of the pool.
Therefore, the correct answer is option D) Both A and C above.