What is the formula for calculating pool turnover rate?

The formula for calculating pool turnover rate is correctly represented by the selected choice, which states that the turnover rate in hours is determined by dividing the pool volume (in gallons) by the flow rate (in gallons per minute).

To understand this, it is essential to recognize that the turnover rate indicates how long it takes for the entire volume of water in a pool to be circulated through the filtration system. By taking the total volume of the pool and dividing it by the flow rate, you determine the time required (in minutes) to completely filter the water. Since the question asks for the turnover rate in hours, this final result would often need to be converted from minutes to hours. However, the fundamental formula conceptually remains correct.

In contrast, other choices provide incorrect formulations. For instance, one option mistakenly reverses the division, leading to an incorrect calculation that does not represent the actual time necessary for water turnover. Another option introduces incorrect units, combining liters and gallons improperly, which would not yield a meaningful result. Finally, one choice also incorrectly uses an hourly flow rate rather than a per-minute rate, leading to a miscalculation of the turnover time. Understanding the correct application of flow rates and pool volume is crucial for achieving accurate calculations in pool