1. What is Turnover Rate?

The turnover rate (TR) measures how many times the total volume of a pool is circulated through the filtration system per day. It's a critical parameter for maintaining proper water quality and sanitation in swimming pools.

2. How Does the Calculator Work?

The calculator uses the turnover rate formula:

Where:

• \( TR \) — Turnover rate (times per day)
• \( FR \) — Flow rate (gallons per minute, gpm)
• \( V \) — Pool volume (gallons, gal)

Explanation: The formula calculates how many times the entire pool volume passes through the filtration system in a 24-hour period.

3. Importance of Turnover Rate Calculation

Details: Proper turnover rate is essential for maintaining water clarity, balanced chemical levels, and effective contaminant removal. Health departments often require specific turnover rates for public pools.

4. Using the Calculator

Tips: Enter flow rate in gallons per minute (gpm) and pool volume in gallons (gal). Both values must be greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal turnover rate for a swimming pool?
A: Most residential pools should have a turnover rate of 1-2 times per day. Public pools typically require higher rates of 4-6 times per day.

Q2: How do I measure flow rate?
A: Flow rate can be measured using a flow meter installed in the plumbing system or calculated based on pump performance curves and system head loss.

Q3: Why multiply by 60 in the formula?
A: We multiply by 60 to convert from "times per minute" to "times per hour," and then by 24 to get "times per day" - though the full formula would be (FR/V)*60*24.

Q4: Does pool shape affect turnover rate?
A: Pool shape doesn't directly affect the calculation, but it can influence circulation patterns which may affect the effectiveness of the turnover.

Q5: How often should I calculate turnover rate?
A: You should calculate turnover rate whenever you change pump equipment, modify plumbing, or if you notice water quality issues.