Solving A Pond Pump Puzzle
Ever found yourself wondering if a different pump would be better for your pond? Or wondered which pump option would be easier on your wallet?
This post will guide you through the ins and outs of submersible vs. external pond pumps, helping you decide which one is the best fit for your needs.
By the end, you’ll be equipped with all the knowledge you need to create a healthier and more beautiful water feature (besides regular pond maintenance service).
Understanding Pond Water Pumps
A pond water pump plays a crucial role in maintaining the health and beauty of your pond. They circulate water, ensuring that oxygen is evenly distributed, which is essential for the survival of aquatic life. Additionally, pond pumps help to keep the water clear by passing it through one of the types of koi pond filter systems to remove debris and contaminants.
Whichever you decide to use when it comes to a submersible vs. external pond pump, both play an important role in your pond.
Importance Of Pumps For A Water Feature
- Maintaining a Healthy Pond Ecosystem: A pond pump helps to circulate water, which is essential for oxygenating the pond, aiding in the survival of fish and other aquatic life. Additionally, circulating the water helps to control the growth of algae and mosquitoes.
- Keeping the Water Clear: They help to keep the water clear by passing it through a filter.
- Supporting Water Features: They are also used to provide the necessary flow rate to additional water features like fountains and waterfalls.
Submersible Pond Pump vs. External Pond Pump
When it comes to choosing the best pump for your pond or water feature, the two main options are submersible pond pumps and external pond pumps.
Both types of pumps have their own set of advantages and disadvantages, and the best choice depends on various factors, such as the size of your pond, the volume of water it holds, and the desired water flow rate.
Power
The power of a pond pump is measured in gallons per hour (GPH), which indicates how much water the pump can move in an hour.
Submersible water feature pumps are usually less powerful than external water feature pumps, making them suitable for smaller ponds and water features. For example, a submersible pump with a flow rate of 500 GPH would be suitable for a small pond of up to 1,000 gallons.
On the other hand, external pumps are more powerful and can move larger volumes of water, making them suitable for larger ponds or ponds with larger water features. For example, an external pump with a flow rate of 2,000 GPH would be suitable for a pond of up to 4,000 gallons.
Cost
Cost is another important factor to consider when choosing between a submersible vs. external pond pump.
Submersible pond pumps are usually less expensive to purchase than external pond pumps. However, the cost of operation can be higher as they are less energy efficient.
External water feature pumps, on the flip side, are more energy efficient and can save you money on your electricity bill in the long run.
Don’t forget about pond pump repair costs too!
Aesthetic
The aesthetic of your pond or water feature is also an important consideration.
Submersible pond pumps are placed directly into the water and can be easily hidden in the pond landscape, making them a more discreet option.
External pond pumps are placed outside the pond and may require additional infrastructure, such as a pump house or shed, to disguise them. However, external pumps allow for more flexibility in the design of your pond as they can be placed further away from the pond intake.
Energy-Efficiency
Energy efficiency is a crucial factor to consider when choosing between submersible vs. external pond pumps.
Submersible water feature pumps are usually less energy efficient compared to external water feature pumps. This is because submersible pumps need to work harder to push water vertically, and they often run at higher temperatures as they are submerged in water.
On the other side, external pumps are designed to be more energy efficient as they are located outside the pond and do not have to work against the pressure of being submerged. This means that external pumps can often move more water while using less electricity, which can lead to significant savings on your energy bill over time.
Discover the best energy-efficient pond pumps for your water feature.
Noise Levels
Noise levels are another important consideration when choosing between a submersible vs. external pond pump, especially if you live in a quiet neighborhood or enjoy the tranquility of your outdoor space.
Submersible water feature pumps are generally quieter as they are submerged in water, which helps to dampen the sound.
External pond pumps, on the other hand, can be noisier as they are located outside the pond. However, pumps with high-quality components and a well-designed pump can help to reduce noise levels.
Durability
Durability is a key factor to consider as it affects the lifespan and maintenance needs of the pump.
Submersible pond pumps are often less durable as they are exposed to water and harsher conditions, which can lead to wear and tear over time.
External water feature pumps are usually more durable as they are located outside the pond and are not exposed to water. However, external pumps need to be properly ventilated to prevent overheating.
Lifespan
The lifespan of a submersible vs. external pond pump is different, too. It’s a critical consideration as it impacts the long-term cost and maintenance needs of your pond.
Submersible water pumps generally have a shorter lifespan compared to external pumps. This is because they are constantly submerged in water, which can lead to faster wear and tear.
On the flip side, external pond pumps are not exposed to water and tend to have a longer lifespan.
However, it is important to note that the lifespan of a pump can vary based on the quality of the pump and the conditions in which it is used.
Maintenance Needs
Maintenance is an essential aspect of keeping your pond pump running efficiently.
Submersible water pumps usually require more maintenance as they are exposed to water and debris, which can clog the pump and affect its performance.
External pumps, though, are usually easier to access for maintenance and repairs as they are located outside the pond.
Environmental Impact
The environmental impact of a submersible vs. external pond pump is an important consideration, especially for those who are environmentally conscious.
Submersible pumps usually have a higher environmental impact as they are less energy efficient and have a shorter lifespan, which means they need to be replaced more frequently.
External pond pumps are generally more energy efficient and have a longer lifespan.
Submersible Pond Pumps
Submersible pond pumps are placed directly into the pond water, either in a skimmer or simply submerged in the pond itself. These pumps are a popular choice for many pond owners because they are usually easier to install and can be hidden in the pond landscape.
They’re best for small ponds to medium-sized ponds and ponds with limited clearance.
Pros Of A Submersible Pond Pump
- Lower purchase price
- Easier to install
- Easy to hide
- Less risk of overheating
Cons Of A Submersible Pond Pump
- Shorter average lifespan
- Higher cost of operation
- Takes up space in the pond
- Access for maintenance and repairs can be challenging
External Pond Pumps
External pond pumps are placed outside of the pond, and the intake is connected to the pond through piping. These pumps are usually more durable and energy-efficient compared to submersible water pumps.
They’re best used in larger ponds or ponds with more additional water features.
Pros Of An External Pond Pump
- Longer lifespan
- Lower cost of operation
- Allows adding other gravity-fed filters
- Easier ways to split the intake and draw water from different locations
- Easier to access for maintenance and repairs
Cons Of An External Pond Pump
- More expensive purchase price
- More involved plumbing and may require special priming
- Needs to be disguised
- Sound may be heard
Key Considerations For Selecting A Pond Water Pump
Selecting between submersible vs. external pond pumps involves several key considerations.
The size and water volume of your pond are crucial; the pump’s flow rate should circulate the entire pond volume at least once every two hours.
Your desired water flow rate is important, especially for ponds with fountains or waterfalls, as they require higher flow rates. Extra water features will also affect the required flow rate and head height of the pump.
If the pond will be used for swimming or wading, an external pump is safer as it gets the electrical component out of the water.
Budget is another important factor, as you should consider both the purchase and operation costs of the pump.
Lastly, think about the landscape and aesthetics of the pond area. Submersible pumps are easier to hide in the landscape, while external pumps may need to be disguised or placed in a pump house or shed.
Tips For Installing And Maintaining A Pond Pump
Proper installation and maintenance are crucial for the continued, reliable operation of your pond pump.
Installation Tips
- For submersible pumps, place the pump on a flat surface in the pond to prevent it from tipping over.
- For external pumps, place the pump on a solid, level surface to prevent vibration and noise.
- Make sure the pump is properly primed before starting it.
- Make sure all connections are tight and secure to prevent leaks.
Maintenance Tips
- Regularly check the pump for any signs of wear and tear.
- Clean your pond filter and pump regularly to prevent clogging.
- Check the water level in the pond regularly. A low water level can cause the pump to run dry and overheat.
- Make sure the pump is properly winterized if you live in an area with freezing temperatures.
How To Calculate Head Pressure
To calculate the head pressure in your pond, measure the vertical height from the surface of the water to the highest point the water will be pumped. Add any additional resistance from fittings, valves, and the length of the hose or pipe.
A head pressure calculator is very helpful for this.
Let Charlotte Backyard Ponds Handle Your Pond Maintenance and Repair Needs!
That wraps up submersible vs. external pond pumps! You should have a better idea about which one will work best for your pond and lifestyle.
At Charlotte Backyard Ponds, we have the expertise and experience to handle all your pond maintenance and repair needs. From selecting the best pump for your pond to installing and maintaining it, we have got you covered.
Fill out our contact form today, or give us a call to schedule a consultation! Let’s keep your pond the best (and most beautiful) part of your landscape.