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SLD Adjustable Flow Pond Pumps

Professional-grade, asynchronous, solids-handling pumps ideal for use in ponds, Pondless® Waterfalls, and other water feature applications

Aquascape SLD Adjustable Flow Pond Pumps

Aquascape SLD Adjustable Flow Pond Pumps are professional-grade, asynchronous, solids-handling pumps ideal for use in ponds, Pondless® Waterfalls, and other water feature applications. SLD Adjustable Flow Pond Pumps provide superior reliability and solids-handling capability. The included Smart Control Receiver makes it easy to connect to the Smart Control App on your smartphone or tablet, allowing for a variety of wireless control functions, including flow adjustment and customized scheduling. The optional Universal Remote for Adjustable Flow Pumps is available separately (#45041) to allow wireless control without the use of a smartphone or tablet.

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
Elevation in Feet
Pipe Length in Feet
Pipe Diameter

Confirm your Water Feature Type

What type of water feature do you have? Select where the pump will be used, either in a "Pond" or "Pondless" water feature.

Pump Application
Pond
Pondless

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 = Pond Volume*

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

Stream Volume

Before choosing a pump for your Pondless Waterfall, it would help to know approximately how many gallons of water your basin needs to hold. To do that, we will need to determine how much water is in the stream. You can find the volume of your stream in gallons with this useful equation:

(Stream Length x Stream Width x (Average Stream Depth x 0.25) x 7.48 = Stream Volume*

*Length and Width are measured in feet. For the purposes of this calculator we are assuming an average depth of 1 inch.


Your pump needs to remain fully submerged while running and the stream is full. We recommend the basin is large enough to hold double the amount of water found in the stream.

Stream Volume x 2 = Gallons in Basin

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 125 gph is needed for every inch of your waterfall width. So if the widest point in the waterfall is two feet wide, you'll need a pump with a flow rate of 3000 gph. Higher flow rates can be used if you want to produce a stronger, more dramatic water flow.

Waterfall Width x 125 = Apprx. Flow Rate*

*Waterfall width measured in inches

Head Height

Head height, also known as total dynamic head, represents the height water needs to be lifted (static head) plus the friction experienced by the water as it runs through the pipes (dynamic head).

Dynamic head is the amount of resistance caused by the plumbing. Water velocity (flow rate), pipe diameter, length and pipe material all play a role in dynamic head. Additional resistance will also be caused by fittings such as elbows and valves. Since this equipment is typically buried in the ground, sometimes an estimation of dynamic head needs to be used.

The calculation below is a simple way to estimate the approximate head height.

Static Head in feet + (Pipe Length in feet x 0.1) = Apprx. Head Height*

*Static head: The height difference between the surface of the pond and the waterfall
Pipe length: We're calculating 1 ft head per 10 ft tubing
Fittings: additional fittings would add 1 ft of head each


The pond calculator is designed to help you find the pump you need for your project. Be advised that variables outside of this calculator, such as pipe diameter or number of elbows used, can influence proper pump selection. If your pond project exceeds the performance from a single pump, please contact Aquascape Customer Care for additional help.

SLD Adjustable Flow Pond Pump Flow Chart (GPH)

Pump Flow Chart - SLD
ModelPurchaseMax Head Height0'5'10'15'20'25'30'35'
2000-5000 2501016.7'5144376924841256
4000-7000 1663125'71266148504438021957
5000-9000 1663533'9574880877426412506935761355

Features of SLD Adjustable Flow Pond Pumps

Learn the many features and benefits of SLD Adjustable Flow Pond Pumps.

SLD Pond Pump Cutaway

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Easy Installation

Threaded 2" outlet allows for quick and easy installation in a variety of applications

2

Asynchronous Motor

Asynchronous motor technology provides superior reliability and longevity

3

Semi-vortex Impeller

Semi-vortex impeller design maximizes water flow and reduces maintenance

4

Durable Housing

Durable pump housing is built to last and will not corrode or rust

5

Efficient

Anti-vortexing shield prevents the pump from drawing air in low-water situations

6

Quiet Operation

Rubber feet prevent noise and vibration while in use

7

Smart Control Receiver

The included Smart Control Receiver connects to the Smart Control App, allowing you to control the pump with your smartphone or tablet

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Integrated Control Panel

Integrated control panel with digital numeric display and quick and easy flow adjustment

Control Aquascape Water Features with Your Smartphone or Tablet

The Aquascape Smart Control App makes it easy to connect and control devices on your smartphone or tablet, providing a variety of wireless control functions, including flow adjustment and customized scheduling. To learn more about the Aquascape Smart Control App visit: https://www.aquascapeinc.com/smart-control-app

SLD Pond and Pondless Waterfall Applications

Pond
Pondless Waterfall

Compare SLD Adjustable Flow Pond Pumps

SLD 4000-7000 Adjustable Flow Pond PumpSLD 4000-7000 Adjustable Flow Pond PumpSLD 5000-9000
SLD 2000-5000SLD 4000-7000SLD 5000-9000
Model Number450464503645037
Maximum Flow Rate (GPH)6,6137,1279,574
Adjustable Flow
Maximum Head Height16.7 feet25 feet33 feet
Motor TypeAsynchronousAsynchronousAsynchronous
Wattage3406601060
Amperage2.816.68.9
Power Cord Length20 feet20 feet20 feet
Pump Discharge Diameter2-inch FPT2-inch FPT2-inch FPT
Ideal Pipe Diameter2 or 3 inch2 or 3 inch2 or 3 inch
Pump Dimensions13 x 6.25 x 7 inches (LxWxH)13 x 6.25 x 7 inches (LxWxH)13 x 6.25 x 7 inches (LxWxH)
App/WIFI Connected
Warranty (Limited)3 years3 years3 years
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