A pool measuring 275,000 gallons needs to turn over every 8 hours. What is the required flow rate for this turnover?

To find the required flow rate for a pool to achieve a complete turnover in a specified time, you need to calculate how many gallons need to be moved per minute. In this scenario, the pool has a volume of 275,000 gallons that needs to be completely circulated or "turned over" every 8 hours.

First, convert the time from hours into minutes. Since there are 60 minutes in an hour, 8 hours translates to:

8 hours × 60 minutes/hour = 480 minutes.

Next, to determine the required flow rate in gallons per minute (gpm), divide the total volume of the pool by the total time in minutes:

Required flow rate = Total volume of pool / Turnover time in minutes

= 275,000 gallons / 480 minutes

= 573.95 gpm.

When rounded to the nearest whole number (as flow rates are typically expressed in whole numbers), this results in approximately 574 gpm. Thus, in this context, the best answer choice representing the required flow rate for the pool to turn over every 8 hours is 573 gpm, which precisely matches the calculation.

Understanding this calculation illustrates the importance of flow rates and turnover times in maintaining pool water quality by ensuring adequate