A pool that holds 275,000 gallons and needs to turn over every eight hours has a flow rate of how many gallons per minute (gpm)?

To determine the required flow rate in gallons per minute (gpm) to achieve a complete turnover of a pool, you need to follow a simple calculation. The turnover rate is the total volume of the pool divided by the time it takes to turn over that volume.

In this case, the pool has a volume of 275,000 gallons and needs to turn over every eight hours.

First, convert the hours into minutes:

• There are 60 minutes in an hour, so eight hours translates to:

8 hours × 60 minutes/hour = 480 minutes.

Next, calculate the flow rate in gpm by dividing the total volume of the pool by the turnover time in minutes:

• Flow rate (gpm) = Total volume (gallons) / Turnover time (minutes)

• Flow rate (gpm) = 275,000 gallons / 480 minutes.

Performing the calculation gives:

275,000 gallons ÷ 480 minutes = approximately 572.92 gpm.

When rounding to the nearest whole number, you arrive at 573 gpm, which is the correct choice. This flow rate ensures that the entire volume of the pool is filtered and circulated within the specified time frame, maintaining water quality and hygiene