Evolution Aqua Airtech 70 Complete

Evolution Aqua Airtech 70 Complete

Efficient Pond Aeration for Small Koi and Garden Ponds

The Evolution Aqua Airtech 70 Air Pump delivers reliable aeration for small to medium garden ponds and koi systems. Producing a maximum output of 70 litres per minute, it provides consistent oxygen supply to support biological filtration and fish health.

Although compact, this pump maintains strong performance under pressure. It delivers approximately 52 litres per minute at 1 metre depth and around 41 litres per minute at 2 metres. Therefore, it remains suitable for deeper ponds, moving bed chambers and air dome installations.

Because biological bacteria depend on oxygen rich conditions, steady airflow improves ammonia and nitrite conversion. As a result, filtration systems such as EazyPod and Nexus operate more efficiently. In addition, increased dissolved oxygen reduces fish stress during warmer months.

The Airtech 70 is highly energy efficient, drawing approximately 34 watts during operation. Moreover, it runs quietly at less than 46 dBA under typical conditions, although certain test environments may record up to 52 dBA.

Designed for continuous 24 hour use, the pump features a robust weatherproof casing suitable for outdoor installation. It operates at a maximum pressure of 0.5 bars, ensuring consistent airflow even when connected to deeper lines or multiple air stones.

Finished in a metallic blue or green housing depending on supply version, the Airtech 70 combines compact size with dependable performance.

What’s Included in the Airtech 70 Complete Kit

• Evolution Aqua Airtech 70 air pump
• Four tap manifold for multiple air outlets
• Ten metres of airline
• Two high quality air stones measuring 80 mm by 30 mm
• Rubber elbow and clips for secure installation

The manifold allows you to split airflow between multiple air stones or filter cleaning connections. Consequently, you can balance aeration across different areas of the pond.

Key Features

• Maximum output 70 litres per minute
• Delivers approximately 52 lpm at 1 metre depth
• Delivers approximately 41 lpm at 2 metres depth
• Maximum operating pressure 0.5 bars
• Power consumption approximately 34 watts
• Quiet operation typically below 46 dBA
• Weatherproof casing for outdoor use
• Suitable for EazyPod cleaning cycles
• Ideal for small koi ponds and garden ponds
• Designed for continuous 24 hour operation

Technical information

• Maximum airflow: 70 litres per minute
• Airflow at 1 metre depth: approximately 52 litres per minute
• Airflow at 2 metres depth: approximately 41 litres per minute
• Maximum operating pressure: 0.5 bars
• Power consumption: approximately 34 watts
• Noise level: typically below 46 dBA, up to 52 dBA in certain environments
• Housing: Weatherproof outdoor casing
• Colour: Metallic blue or green housing
• Weight: Approximately 4.8 kg, up to 5.5 kg depending on kit version
• Dimensions: Approximately 20 x 12 x 16 inches

Practical setup advice

Before ordering, think about how this product fits into the full pond setup. Compatibility, maintenance access, pipe or hose size and future servicing are often just as important as the headline specification. A product that is technically suitable can still disappoint if it is installed with restricted flow, poor access or the wrong supporting equipment.

Where possible, plan the main product and the accessories together. This makes installation neater, maintenance easier and the final system more reliable over time.

Before you order

Check the product size, connection details, access requirements and the equipment it will be used with. On ponds, the surrounding system often decides how well the product performs. Suitable pump flow, clean filters, correctly sized hose or pipework, good access for servicing and realistic maintenance all help the product work as intended.

Maintenance and compatibility checks

It is worth checking the supporting parts at the same time as the main product. Hose size, pressure pipe, valves, unions, UV units, filter inlets, air manifolds, spares and cleaning access can all affect how well the final system works. A correctly matched installation usually performs better and is easier to maintain than one built from parts chosen separately.

Aeration setup notes

Evolution Aqua Airtech 70 Complete should be chosen as part of the complete air system, not just by litres per minute. Airline length, airline bore, diffuser depth, manifold taps and back pressure all affect the real airflow that reaches the pond or filter. A well matched aeration system runs more quietly, puts less strain on the pump and gives more dependable oxygen support.

• Use suitable airline size for the pump output and distance involved.
• Keep the air pump dry, ventilated and protected from flooding.
• Spread airflow across multiple diffusers on larger ponds where possible.
• Check diaphragms, filters and diffusers during routine servicing.

For koi ponds, moving bed filters and warm weather aeration, consistent airflow is often more useful than simply oversizing the pump. Balanced diffuser placement gives better circulation and helps avoid stagnant areas.

Helpful links and compatible products

Use these links to plan the rest of the system around this product. The right pump, pipework, UV, air supply, media or spares will make the installation easier to set up, maintain and service.

• View the full Evolution Aqua range
• Browse Evolution Aqua Airtech air pumps
• Air pump accessories, manifolds and diffusers
• Use with Evolution Aqua Nexus filters
• Use with Evolution Aqua EazyPod filters

More useful ranges and guides

These related ranges and guides may help you compare options, choose the right accessories and plan the full pond system rather than viewing this product in isolation.

• Browse pond filters
• Browse pond pumps
• Browse Evolution Aqua evoUV clarifiers
• oxygenation and aeration guide for koi ponds