Pond Pump Size Calculator
Free pond tool

Pond Pump Size Calculator

Enter pond volume, waterfall width and lift and see the pump flow to look for.

These tools give planning-level estimates from typical values. They are not quotes, designs or engineering, and results depend on your actual soil, depth, access, local rules and conditions. Only a visit can confirm what a job needs, and we give you a clear price before any work begins.

How it works

Four quick steps.

  1. 01

    Enter the volume

    Gallons in the pond.

  2. 02

    Pick the turnover

    Once an hour for fish, less for water gardens.

  3. 03

    Describe the waterfall

    Weir width and the sheet you want.

  4. 04

    Add the lift

    Height from the pump to the top of the fall.

Tips

  • The waterfall often sets the pump size, not the pond.
  • Pump ratings are at zero lift, and flow drops as height rises.
  • A flow valve lets you turn a strong pump down.
Questions

About this tool.

Is this a recommendation?

It is a planning guide. We check the pump curve and measure the flow at startup.

Can a pump be too big?

Yes. Too much flow splashes, wastes power and can stress fish. A valve can tame it.

What about pipe size?

Larger pipe and gentle bends lose less flow, so a smaller pump can do the job.

Free estimate

Ready for water in your yard?

Quick scheduling, careful work and a clear price before we start.

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