Large pond aeration-the key to clear natural ponds

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Large pond aeration-the key to clear natural ponds

Update:23 May 2020

Pond aeration, especially underground pond aeration, is […]

Pond aeration, especially underground pond aeration, is the most important thing. You can add a pond to increase water transparency, water quality and reduce the growth of algae and weeds. The most effective way to aerate a large natural pond is to use an underground aeration system to direct the diffused air directly into the water. Underground aeration is carried out from the bottom up by using a compressor to pump air through the diffuser down to the bottom of the pond, and the small bubbles generated by the diffuser rise to the surface of the pond.

For more information on how to determine the size of the aeration system required for a pond, please visit our page on how to size an aeration system for a large pond.

We also provide other articles to help you maintain the best condition of the pond, such as: large pond weed control, large pond algae control and large pond manure and sludge.

Composition of underground pond aeration system


The underground pond aeration system has three main components.

1. Compressor – is the heart of the system. The compressor is a pump that produces compressed air, which is delivered to the bottom of the pond. The compressor is usually placed on the shore near the pond, but it can also be placed hundreds of feet away from the pond.

2. Tubing – Aviation tubing conveys the air generated by the compressor down to the bottom of the pond. The two most common types of pipes are vinyl and PVC. The vinyl tube is thin and will float when the compressor is running. The heavy object must be connected to the vinyl tube to make it submerged. PVC pipes are much thicker and will automatically weigh themselves. It will remain at the bottom and will be more durable and lasting.

3. Diffuser-The diffuser is connected to the airline at the bottom of the pond. It is used to decompose air into tiny bubbles, so as to circulate and inflate more efficiently. There are several types of air diffusers.

Aeration system components
We provide many different types and sizes of pond aeration systems for ponds of all sizes. Visit our lake and large pond aerator pages to find the aeration system that is right for your pond.

How underground aeration works
–The compressor is used to pump air to the bottom of the pond through a diffuser, which breaks the air into very fine bubbles
– These bubbles rise to the surface of the water, pulling large amounts of water from the bottom of the pond to the surface.
– Oxygen-depleted water rises to the surface that absorbs oxygen and releases carbon dioxide.
– Oxygen-rich water then returns to the bottom of the pond, where beneficial aerobic bacteria use this oxygen to digest sludge and organic matter, eliminating excess nutrients.
How aeration helps the pond
Aeration helps break down decaying organic matter and vegetation, such as submerged plants, leaves, grass clippings, algae, and other substances such as fish droppings. The decomposition of organic matter at the bottom is carried out by beneficial bacteria and enzymes in the surface of the feces. Ventilation helps these bacteria to better digest this waste. Ventilation can also help your pond in many other ways, such as improving water quality and clarity, reducing algae reproduction, reducing fish killing and reducing odor.

Benefits of aeration in underground ponds
Improve decomposition of decaying plants
Reduce sludge and sludge
Reduce algal blooms
Improve water quality
Improve the water quality of fish and aquatic wildlife
Increase the oxygen content at the bottom of the pond
Reduce odor
Reduce fish kill
More effective than floating fountain
Pond has no electricity
Aerobic and aerobic conditions
The decomposition or decomposition of organic matter at the bottom of the pond can be carried out in two ways:


1. Anaerobic (hypoxic or anaerobic)
2. Aerobic exercise (high oxygen level)
Non-inflatable ponds-anaerobic conditions (low oxygen)
When the oxygen level at the bottom of the pond is low, anaerobic decomposition occurs. Bacteria that can survive at low oxygen levels can slowly decompose feces and sludge, but they do not do well. With these anaerobic bacteria, the decomposition rate becomes slow and incomplete, and the final product is sludge and toxic gases such as ammonia, methane and hydrogen sulfide (egg odor!). With anaerobic decomposition, organic matter, sludge and sludge increase every year because they accumulate faster than they decompose.