build a fish pond

Pond Pump

Pond pumps are crucial to the survival of your Koi pond. It provides aeration (very important for Koi) and powers the filter and UV sterilizer. In fact, one of the most important things to remember is, that if you have Koi in your pond you need to keep your pump running 24/7.

It is important that the pump circulates the entire volume of your pond about once an hour. So, if you have a 1000 gallon pond, then you will need at least a 1000 gallons per hour (gph) pump.

There are very many kinds of pumps, and they are not just for fish. Some are used to provide the power to circulate water through waterfalls, fountains, ornaments, filter systems and sterilizer units. When you have a pond you to have a pond pump, otherwise you may end up with a swamp!

External Pond Pump

Self Priming, High Performance Pond Pumps for External Applications.

sea flow pond pump

SeaFlow External Koi Pond Pumps

Starting Out At $725.00

Sizes From 5340 GPH, 1/2 HP, 11.0 Amps to 9600 GPH, 3 HP, 15.0 Amps

Click Here for the SeaFlow External Pond Pumps

sea horse pond pump

SeaHorse External Koi Pond Pump

Starting Out At $410.00

Sizes From 3960 GPH, .5 HP, 6.9 Amps to 2280 GPH, 1/6 HP, 3.56 Amps

Click Here for the SeaHorse External Koi Pond Pump

Waterfall pump for sale

Lifegard Waterfall Pump

Starting Out At $900.00

Sizes From AFP-75 - 5100 GPH to AFP-180 - 10,800 GPH

Click Here for the Lifegard Waterfall Pumps

Proper Pipe/Hose Selection

Here’s an easy to remember technique called “Square and Compare” for properly sizing the pipe for adequate flow rate in your water feature.

If a 1” pipe is considered one unit in size, how much bigger is a 2” pipe? The answer: four times as large. Therefore, if you thought you could equally replace a 3” pipe with two 2” pipes, you would be mistaken, because a 3” pipe actually has nine units of measure as opposed to eight units of measure in the two 2” pipes.

There is a significant reduction in friction from one pipe size to the next larger size with the exact same water flow. A larger pipe allows more water to flow through it with less pipe wall coming into contact with the water, thereby reducing the amount of available friction to slow the water flow. More flow and less friction are a winning combination when dealing with proper flow rates in water feature applications.

Plenty of water moving at slower speeds will keep your water feature projects on a successful track. Do not be afraid to use valves and fittings, but limit their numbers to manageable levels and use larger pipes and fittings to gain an advantage in your future water feature projects.

Helpful Terms

Flow Rate – The amount of water moving in a given period of time.

Rise – The height of the waterfall, measured from the surface of the pond to the top of the falls.

Watts – Electrical power consumption of a motor (Watts = Volt x Amps)

Mag Drive – Type of high-efficient pump that relies on magnetic forces to drive the impeller.

Direct Drive – Type of pump with a motor that drives a shaft that spins the impeller. Not as efficient as a mag drive pump, but highly durable.

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