1. What is a Swimming Pool Pump Calculator?

Definition: This calculator determines the required pump flow rate (in gallons per minute) based on your pool volume and desired turnover time.

Purpose: It helps pool owners and maintenance professionals select the properly sized pump for efficient water circulation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Flow rate (gallons per minute)
• \( V_{pool} \) — Total pool volume (gallons)
• \( T_t \) — Desired turnover time (minutes)

Explanation: The pool volume is divided by the desired turnover time to determine the required flow rate.

3. Importance of Proper Pump Sizing

Details: Correct pump sizing ensures efficient filtration, proper chemical distribution, and energy savings while maintaining water clarity.

4. Using the Calculator

Tips: Enter your pool volume in gallons and desired turnover time (default 480 minutes/8 hours). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is turnover time?
A: The time required to circulate the entire pool volume through the filtration system, typically 6-8 hours for residential pools.

Q2: How do I find my pool volume?
A: Use our Pool Volume Calculator or multiply length × width × average depth × 7.5 for rectangular pools.

Q3: What's a typical flow rate for residential pools?
A: Most residential pools require 40-60 GPM, depending on size and features.

Q4: Should I consider other factors when selecting a pump?
A: Yes, also consider pipe size, filter type, and elevation changes in your plumbing system.

Q5: Does this calculation include spa or water features?
A: No, if your system includes these features, you may need additional flow capacity.