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How Do I Calculate the Volume of Water In My Pond?

You can calculate the volume of water in your pond using the following formulas:

Rectangular Water Features:

length x width x depth x 7.5 = Gallons

Circular Water Features:

diameter x diameter x 5.9 = Gallons


length x width x depth x 6.7  = Gallons

These formulas are important when choosing a water pump. For best pond health, your pump should move the entire volume of your pond in one hour. For example, a 900 Gallon pond or water feature should have at least a 900 GPH pump.

For more information about pond volume and choosing the appropriate pump for it, call 604.882.1201 or visit us in person at Arts Nursery Ltd.

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