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How to choose a pond pump

Firestone EPDM 45 mil Pond Liners
Firestone EPDM 45 mil Pond Liners

$50.00

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Whether you have a preformed pond or a liner pond, a pond pump is a paramount component of any water feature, because without a pond pump there will be no water movement, which could result in mosquitoes and other unwanted pests breeding in it. If you choose the wrong pond pump, your water will either not flow the way you desire, or you may have insufficient flow to filter your water and/or feed your waterfall. Therefore, it is worth taking the time to choose the proper pond pump to suite your needs.

What kind of pond pumps are available?

Pond pumps are available in both submersible and external (out-of-pond) models. For the smaller pond (up to 1000 gallons of water), a submersible pump is the more economical and practical option. Submersible pond pumps can be placed directly in the pond and require relatively little installation. They are free of distracting noise, and for smaller ponds, can easily be utilized to drain your pond (if you hook up a hose to the output flow). In the old days, the main disadvantage of submersible pond pumps was that the pump seal could rupture and release oil coolant into the water. However, this is not the case nowadays, because newer pumps are magnetic-driven, and no longer require coolant. "Mag-driven" pumps are slightly more expensive, but they have the added advantage of consuming less electricity, operating more quietly, and being more reliable over long-term use than direct-drive pond pumps.

How are pond pumps sized?

Pond pumps are sized by gallons per hour (GPH) output at one foot of lift or height. Larger capacity pumps are rated by horsepower (HP). Manufacturers offer charts that break down the power of each size pump according to incremental heights of one foot. Some companies label pond pumps by GPH while others assign letter or number designations that require cross-referencing to charts.

How do I know what kind of pump I need?

To determine the correct submersible pond pump for your water garden, you should determine your pond's volume. It is recommended that you circulate your pond's water once at least every 2 hours. Hence, your pump should have a GPH (gallons per hour) rating of at least half of your pond size.

For example, if you had a 1000 gallon pond, then you will require a 500 GPH pond pump.

Green Tip:

Reduce car emissions by not idling - if you're going to be stopped for more than 60 seconds - except in traffic turn the engine off.

If you have fish, or accessories such as fountains or waterfalls/streams, you should account for this be getting a larger pump (preferably one size larger). The general rule of thumb is that you should double the pump's capacity if you are planning to add fish.

Calculating the proper pump for waterfalls is a bit trickier, because waterfall pumps are rated by both GPH and maximum waterfall height. To estimate your waterfall's height, you must measure the vertical height from the top of your pump to the top of your waterfall or stream. In addition, you must add another foot of height or lift for every 10 feet of hosing you will be using (this will allow for loss of volume from resistance within the hose). To calculate the required pump GPH, a general rule of thumb is that each inch of width of the channel will require an extra 100 GPH. For example, if your stream or waterfall spillway will be 10 inches wide, you will need a pumpthat produces an excess flow of 1000 GPH at your waterfall's height.

Pond Pump Sizing Chart

Pond Size (gallons) Minimum Pond Pump Size (for pond circulation only)
30-100 50 GPH
100-200 100 GPH
200-400 200 GPH
400-700 350 GPH
700-900 450 GPH
900-1100 550 GPH
1100-1500 750 GPH
1500-2000 1000 GPH

Recommended Tubing Diameter For Pond Pumps (When Connecting To Waterfalls)

Statuary Pump

Specifications for Statuary Pond Pumps

  Pond Pump Model
Extrema IDRA Nova Micra Plus Micra Mi-Mouse
Tubing 3/4" 1/2" 1/2" 1/2" 1/2" 1/2"
Head 7.25" 7" 4.8' 3.2' 1.8' 1.6'
Watts 28 22 9.6 7.8 6.1 6
GPH at 0' 660 306 178 158 90 82
GPH at 1' 580 296 165 118 50 42
GPH at 2' 520 270 140 78 - -
GPH at 4' 420 210 80 - - -
GPH at 6' 260 150 - - - -
Please read down the columns for different model specifications.
SuperFlo Pump

Specifications for Super Flo Pond Pump Kits

  Pond Pump Model
800 1300 2000 3000 4000 5000 6000
Head 4.8' 7' 7.3' 8' 9.5' 11' 15'
Watts 8.3 23 28 43 59 90 120
GPH at 0' height 200 306 500 792 990 1100 1585
GPH at 1' height 165 296 490 772 970 990 1335
GPH at 2' height 140 270 460 752 940 960 1290
GPH at 4' height 80 210 400 690 880 900 1210
GPH at 6' height - 150 340 630 820 840 1140
GPH at 8' height - - 100 250 390 640 810
GPH at 10' height - - - - 210 380 520
GPH at 14' height - - - - - - 240
Please read down the columns for different model specifications.
UltraFlo Pump

Specifications for all Ultra Flo Pond Pumps

 

Pond Pump Model

800 1700 2600 4000
Tubing 3/4" 1" 1" 1"
Head 4.8' 6.6' 9.5' 10'
Watts 11.5 30 33 44
GPH at 0' 200 440 660 1018
GPH at 1' 165 400 640 980
GPH at 2' 140 340 600 920
GPH at 4' 80 200 540 860
GPH at 6' - 60 400 780
GPH at 8' - - 200 370
Master DW Pump

Specifications for SICCE Master DW Waterfall/Cascade Pond Pumps

Master DW is a prestigious range of pond pumps which have been designed for medium to large ponds, for partially dirty water, to create waterfalls, and to use in conjunction with external filters.

  Pond Pump Model
Master DW 8000 Master DW 10500
Watts 150 250
GPH at 0m height 2100 2780
GPH at 1m height 1980 2690
GPH at 2m height 1850 2590
GPH at 3m height 1640 2430
GPH at 4m height 1320 2300
GPH at 5m heigh 1050 2110
GPH at 6m height - 1850
GPH at 7m height - 1580
GPH at 8m height - 1190
GPH at 9m height - 550
Please read down the columns for different model specifications.
MaxFlo Pump

Specifications for Algreen MaxFlo Waterfall Pond Pumps

MaxFlo is a powerful line of waterfall pumps designed for large ponds.

  Waterfall Pump Model
MaxFlo 9,000 MaxFlo 12,000 MaxFlo 16,000 MaxFlo 20,000
Watts 190 270 320 420
Max. Flow Rate 2200 GPH 3200 GPH 4,000 GPH 5,000 GPH
Max. Flo Height (Head) 12' 18' 19' 22'
Outlet Connection 1", 1 1/2" 1", 1 1/2" 1 1/2" 1 1/2"
Please read down the columns for different model specifications.