How to Select A Pond Pump

Pond pumps come in a wide variety of sizes and models—how do you know which one is best for your pond?

Purchasing a pond pump can be a very confusing endeavor. Pond pumps come in a wide variety of sizes and models—how do you know which one is best for your pond? You will need a pump for your pond especially if you plan to have moving water—either a waterfall, stream, sprouting ornament or fountain.

To start with, it does not matter whether your pond is preformed or has a liner—your pond pump needs will be the same.

Pond pumps are available in essentially two types—external and submersible. For smaller ponds, a submersible pump is more cost-effective. Check with your supplier for information that will help you decide which type is best for your pond.

Pond pumps are sized by gallons per hour—the output of water at one foot of height. Pumps that are of larger capacity are rated in horsepower. It is suggested that your pond water be turned half to one full time per hour—for example, a 1,000 gallon pond should have a 1,000 gallon per hour pump.

You will need to know the vertical height from the top of your pump to the top of your waterfall or stream, if you are choosing to go that route. For every ten feet of hose you will use, add another foot of height, or lift, for your pump. It is most effective to purchase a pump that will handle more than what you need—without going too far overboard and using too much energy.
Submersible pumps are placed in the water of your pond—they run much quieter and can also be used to drain your pond. There are a few disadvantages to submersible pumps—for example, seal ruptures which can pollute your pond with coolants.

You will need to know how many gallons of water are in your pond and what type of filtration you will be using. Preformed ponds will have specifications for the type, size and model of pond pump that you should use with your pond.

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