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Pool Plumbing Flow Rate Calculator
Calculate gpm through pool plumbing from pipe size and water velocity.
💧 Free Online Tool
⚡ Instant Results
📊 Clear Comparison
🔒 100% Free Tool
Free Pool Tool
Compare Your Options And Get Clear Answers
Calculate gpm through pool plumbing from pipe size and water velocity.
Pool Plumbing Flow Rate Estimator
Enter your numbers below for an instant estimate.
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💡 Tip: Use the larger of suction and return line sizes to avoid flow limits.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Pool Quick Guide
Typical values for reference.
| Pipe | At 6 ft/s | At 8 ft/s | Note |
|---|---|---|---|
| 1.5 in | 33 gpm | 44 gpm | Small |
| 2 in | 59 gpm | 78 gpm | Standard |
| 3 in | 132 gpm | 176 gpm | Large |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Pool Plumbing Flow Calculator FAQ
Answers to common questions about this calculator.
Gallons per minute.
It gives a quick estimate of pool plumbing flow rate from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.