A commercial spa with a volume of 3,500 gallons has a flow rate of 150 gpm. What is the resultant turnover rate?

To determine the turnover rate of a commercial spa, you can use the formula that relates the volume of the spa to its flow rate. The turnover rate indicates how long it takes for the entire volume of the spa to be circulated through the filtration system.

Calculate the turnover time by using the formula:

[

\text{Turnover Rate (minutes)} = \frac{\text{Volume of Spa (gallons)}}{\text{Flow Rate (gallons per minute)}}

]

For this particular spa:

• The volume is 3,500 gallons.

• The flow rate is 150 gallons per minute.

Now, plug the numbers into the formula:

[

\text{Turnover Rate} = \frac{3500 \text{ gallons}}{150 \text{ gpm}} = 23.33 \text{ minutes}

]

This calculated value of approximately 23.3 minutes represents the time it takes for the spa to go through a complete turnover of its water.

Thus, the correct answer is accurately identified as the option that reflects this turnover time, confirming that the spa will completely filter its volume every 23.3 minutes. This metric is crucial for ensuring water quality and proper sanitation in commercial spas.