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Choosing The Right Pond Aeration Pump.

A guide to help you choose the most suitable pond aeration pump.

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We have installed 1,000+ commercial and private ponds & lakes for our clients over the years. This guide will help to summarise which pond aerator you need, based on your requirements.

To speak to one of our experienced in-store team, feel free to call us.

Why Aeration Matters.

Aeration involves adding oxygen to the water, promoting beneficial bacteria growth and breaking down organic matter. 

It is important to know: It is very difficult to over-aerate a pond. 

In this article, we’ll explore the different types of pond aerators, when to use them, and common mistakes people make with them.

Types of Pond Aerators

There are two main types of pond aerators: surface aerators and diffused aerators.

Surface aerators are designed to move the water’s surface, causing oxygen to be added as it’s mixed with the air. These aerators are best suited for shallow ponds or small bodies of water with low flow rates. Surface aerators are also useful in preventing the pond from freezing over in the winter.

Diffused aerators, on the other hand, are designed to add oxygen to the water at the pond’s bottom, using air stones or diffuser tubes. These aerators are best suited for deeper ponds or large bodies of water with high flow rates. Diffused aerators are also more energy-efficient and less prone to creating noise and surface turbulence than surface aerators.

Common Mistakes People Make with Pond Aerators

One common mistake people make with pond aerators is using the wrong type for their pond size and depth. 

This can lead to inefficient aeration and poor water quality.

Another mistake is not properly maintaining the aerator, which can lead to clogged air stones or diffusers, reducing oxygenation and promoting bacterial growth. 

Regular cleaning and maintenance are crucial for optimal aerator performance.

Pond Aeration Pump Recommendations for You.

Below, we’ve broken down some different pond-size groups, and recommended aeration pumps for each group:

Small Ponds (Up To 4,000 sq/litres)

Without Fish
Recommended Aerator: Pontec PondoAir Aerator Set 200

With Fish
Recommended Aerator: Pontec PondoAir Aerator Set 450 (up to 8,000 sq/l)

Medium Ponds (Up To 16,000 sq/litres)

Without Fish
Recommended Aerator: Pontec PondoAir Aerator Set 450

With Fish
Recommended Aerator: Pontec PondoAir Aerator Set 900

Large Ponds (Up To 40,000 sq/litres)

Without Fish
Recommended Aerator: Pontec PondoAir Aerator Set 900

With Fish
Recommended Aerator: PondTec Pond Aerator 3600 


Choosing the right aerator for your pond is crucial for maintaining optimal water quality and promoting fish health. By understanding the different types of aerators and when to use them, you can ensure your pond stays healthy and beautiful year-round. Remember to properly maintain your aerator to ensure it operates efficiently and effectively.

We hope this guide has been helpful in choosing the right aeration pump for your needs. If you have any further questions or need assistance, please don’t hesitate to contact us.

To speak to a human, call us on 01256 883907

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