# Turnover Rate - CPO® Math Tutorial

## A Tropical Aquatics Educational Program

### Things to know about Turnover Rate

LEARN HOW TO OPERATE YOUR PUBLIC POOL SPA FACILITY
 Codes require more than one turnover per day: The common accepted standards for one turnover are: Pools - 6 hours Spas - 30 minutes Wading pools - between 1 and 2 hours Therapy pools - 2 hours Hospital and health club pools - as low as hours To achieve the required Turnover Rate (TR), there must be sufficient flow of water or Flow Rate (FR) Formula for Turnover Rate: Divide the pool shape into areas of constant depth, or constant slopes. Turnover Rate(TR) = Gallons divided by Flow Rate (FR) divided by 60. Flow Rate (FR) is measured by a flow meter. Example: You have a 65,000 gallon pool, and the flow meter is reading 240 GPM (gallons per minute). What is the Turnover Rate (TR)? Turnover Rate(TR) = Gallons divided by Flow Rate (FR) divided by 60 Gallons = 65,000; FR = 240 GPM TR = ÷ ÷ 60 =

The standard for a swimming pool is 6 hours. This pool is well within the code standards. Remember, Always operate in compliance with your local or state code requirements.