Aquascape Pond Pumps

Pond Pump Selection Guide

Pumps are the heart of any water feature, continually circulating water and providing aeration to create the basis for a stable ecosystem. Proper pump sizing is critical to the health and function of the water feature and you want to be sure you’ve selected the correct pump. We’re here to help!

Aquascape provides our easy-to-use pond pump selection guide to help you choose the proper pump family for your water feature, whether it’s a pond, waterfall, or fountain.

Aquascape Pump Families

Aquascape pond pumps, submersible pond pumps, and fountain pumps are the preferred pond pump for hobbyists and professional pond installers alike. Learn more about our full line of pumps for ponds and water features and select the pond pump that’s right for you.

Selecting the Proper Pump Size

Once you’ve determined which Aquascape pump family best suits your water feature application, you’ll need to select the proper size pump.

Length in Feet
Width in Feet
Avg Depth in Feet
Width in Inches
Rise in Feet
Run in Feet

Pond Volume

A basic pond pump will have the capability of turning the total volume of water over once per hour. Therefore, before choosing a pond pump, you need to know the number of gallons of water in your feature. You can find the volume of your pond in gallons with this useful equation:

(Length x Width x Average Depth x 7.48) x 0.8 = US Gallons*

*Length, Width and Depth are measured in feet

Pond Volume

A basic pond pump will have the capability of turning the total volume of water over once per hour. Therefore, before choosing a pond pump, you need to know the number of gallons of water in your feature. You can find the volume of your pond in gallons with this useful equation:

(Length x Width x Average Depth x 7.48) x 0.8 = US Gallons*

*Length, Width and Depth are measured in feet. We multiply by 0.8 to account for rocks in the pond.

Flow Rate

Most pond pumps are rated by the gallons of water they're able to pump per hour (GPH). As a general rule of thumb, a pump with a flow rate of 1500 GPH is needed for every foot of the length of the spillway (the weir, which is the horizontal width of the waterfall opening). So if your waterfall spillway is two feet wide, you'll need a pump with a flow rate of 3000 GPH.

Waterfall Width x 125 = Apprx. Flow Rate*

*Waterfall width measured in inches

Head Height

Pond pumps are capable of pushing a certain amount of water based on the height and distance that the water needs to travel. This amount of work is generally referred to as head. Static head (or rise) is the overall height of water that the pump needs to push, referring to the elevation change from the surface of the pond to the spillway at the top of the waterfall.

Friction head (or run) is the amount of resistance caused by the plumbing. Pipe diameter, type of pipe, and fittings all play a role in friction head. Since this equipment is typically buried in the ground, sometimes an estimation of friction head needs to be used.

Rise + (Run x 0.1) = Apprx. Head Height*

*Rise and Run are measured in feet


Aquascape provides our easy-to-use pond pump selection guide to help you choose the proper pump family for your water feature, whether it's a pond, waterfall, or fountain.