Hayward Pool Pump Size Calculator
Find the right pump size fast with a Hayward pool pump size calculator. This guide helps you choose the correct Hayward pump for efficient water flow and energy savings. Avoid overspending and keep your pool clean with accurate pump sizing.
Hayward Pump Sizing Estimator
How to Use Hayward Pool Pump Size Calculator
Follow these simple steps to use a hayward pool pump size calculator:
- Measure your pool volume: Use gallons (length × width × average depth × 7.5).
- Set desired turnover rate: Standard is 8 hours for residential pools.
- Enter flow rate requirement: Calculator will compute gallons per minute (GPM).
- Add head loss: Include pipe length, fittings, and filter resistance.
- Select Hayward pump model: Match calculated GPM and total dynamic head (TDH).
- Review efficiency: Choose energy-efficient variable-speed pumps if possible.
How to Calculate Hayward Pool Pump Size
Use this simple formula:
Flow Rate (GPM) = Pool Volume (gallons) ÷ Turnover Time (minutes)
Step-by-Step Example:
Step 1: Calculate pool volume
Pool size = 30 ft × 15 ft × 5 ft average depth
Volume = 30 × 15 × 5 × 7.5 = 16,875 gallons
Step 2: Convert turnover time to minutes
8 hours = 480 minutes
Step 3: Calculate required flow rate
Flow Rate = 16,875 ÷ 480 = 35.15 GPM
Step 4: Estimate Total Dynamic Head (TDH)
Pipes + filter + heater ≈ 40 feet (example)
Step 5: Choose Hayward pump
Select a pump that delivers ~35–40 GPM at 40 ft TDH
Result:
You need a Hayward pump that supports ~35 GPM at your system head.
Hayward Pool Pump Size Conversion Chart
| Pool Size (Gallons) | Turnover Time (Hours) | Flow Rate (GPM) | Suggested Pump HP |
|---|---|---|---|
| 10,000 | 8 | 21 GPM | 0.5 HP |
| 15,000 | 8 | 31 GPM | 0.75 HP |
| 20,000 | 8 | 42 GPM | 1.0 HP |
| 25,000 | 8 | 52 GPM | 1.5 HP |
| 30,000 | 8 | 63 GPM | 1.5–2.0 HP |
Note: Pump size depends on system head and plumbing design.
FAQs About Hayward Pool Pump Size Calculator
It is a tool that helps you find the correct pump size based on pool volume, flow rate, and system resistance.
Correct sizing improves water circulation, saves energy, and extends equipment life.
A large pump wastes energy, increases costs, and may damage your filtration system.
Yes. Variable-speed pumps offer better efficiency and allow you to adjust flow rates as needed.
Most residential pools use an 8-hour turnover rate for proper filtration.
Add pipe length losses, fittings, elevation changes, and filter resistance.
Yes. Smaller pipes increase resistance and require more pump power.
You can install it if you understand plumbing and electrical safety. Otherwise, hire a professional.
It provides a close estimate. Final selection should consider real system conditions.
Popular options include Hayward Super Pump and TriStar series, depending on your needs.