Discover the Basics of Water Pumps for Ponds and Fountains
A pump maintains proper water flow and provides aeration to ensure clean, fresh, and healthy water for the fishes and plants.
Water features like a pond or fountain add a different character and appeal to the yard and make the property stand out in the neighborhood. The pump is one of the most critical elements in every water feature, regardless of its size, and is responsible for filtration. It maintains proper water flow and provides aeration to ensure clean, fresh, and healthy water for the fishes and plants. Conversely, an inadequately-sized water pump leads to poor water circulation and offers a favorable environment for algae buildup and mosquito breeding.
Types of pond pumps
Pond pumps are available in various styles and sizes. Therefore, knowing about the different types of water pumps is essential to understanding which will suit the pond's needs best.
Submersible pumps
Submersible pumps are water pumps that remain fully submerged in water, usually at the bottom. These pumps can be placed either directly into the pond or in a pond vault or skimmer box. Submersible pumps are inexpensive and easy to install but costly to operate and generate high energy costs. However, they run quietly, are easy to conceal, and, if needed, can help drain the pond. Furthermore, submersible pumps are more suitable for small or medium-sized ponds (800-1000 gallons). Their pumping capacity can range from 50 to 50,000 gallons per hour (GPH). If the pond has aquatic animals, use submersible pumps that do not use oil. When maintained regularly, submersible pumps can last for a long time.
Non-submersible pumps
Non-submersible or external pumps can circulate large volumes of water at lower energy costs than submersible pumps. In addition, they are reliable for large ponds (over 1000 gallons of water). Also, they are installed at a dry location near the pond. Non-submersible pumps are louder and more complicated to install but more reliable and easier to repair and maintain.
Sizing the pond or fountain pump
The pump selection will usually depend on the pond size or if the pump will have filtration or water feature purposes. Consider the pump strength (GPH) and horsepower when choosing pump size. A pond that is only circulating water and not supporting a fountain will need a lower GPH. This is because pond water needs an hourly circulation rate. The horsepower requirement will depend on the pond size and the fountain height.
To determine the pump size, calculate the volume of water. Multiply the pond length, width, and depth (in feet) by 7.5 to get the volume in gallons. The pump should move half the total water volume in an hour. To get the flow rate for filtration, multiply the pond volume in gallons by 0.5. For taller outdoor fountains, use pumps with more horsepower. Also, calculate the pumping head height and maximum lift before sizing the pump.
Other considerations
Pumps come with varying cord lengths. While purchasing, ensure the cord length is sufficiently long to run through the pond and plug in far from the water. Longer cords are usually preferable. Some electrical codes require the water feature outlets to be a minimum of 6 feet away from the water. Also, select the appropriate tubing size to ensure the maximum lift capability of the pump.
Consult the professionals
Contact a local pump service to know more about the pond and fountain pumps or for assistance in choosing the right pump.
Pump Repair Services provides residential and commercial pump repair services for all types of pumps and custom water filtration services in the Orlando area. We offer 24-hour emergency service. Call us at (407) 625-5499.
