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Charles Austen ET80AO Air Blower 80 l/pm

£100.00

(exc VAT)

£100.00

(exc VAT)

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The Charles Austen ET80AO Linear Diaphragm Air Pump is a reliable, energy-efficient aeration pump designed for sewage treatment plants, septic tank systems, ponds, and aquatic environments. Providing a clean, oil-free air supply, the ET80AO delivers dependable performance for both residential and commercial applications while being ideally suited for outdoor installation thanks to its weatherproof, rainproof construction.

The ET80AO features a built-in loss of pressure alarm and an additional output cable for connecting an external warning beacon, offering enhanced protection for critical aeration systems. If pressure drops due to pump failure, blocked air lines, or power interruption, the integrated alarm provides immediate notification, helping to reduce downtime and maintain system efficiency.

Powered by Charles Austen's advanced Green Drive Technology, the ET80AO combines low energy consumption with consistent performance, making it a cost-effective choice for continuous aeration applications.


Key Features

  • Clean, oil-free air supply for reliable aeration
  • Built-in loss of pressure alarm for enhanced system monitoring
  • Additional output cable for connection to an external beacon
  • Green Drive Technology for energy-efficient operation
  • Low power consumption and reduced running costs
  • Specially formulated diaphragm material for extended service life
  • Consistent airflow performance with minimal wear
  • Robust, compact, and weatherproof construction
  • Suitable for indoor and outdoor installations
  • Easy to service with competitively priced maintenance kits
  • Designed for continuous or intermittent operation
  • Whisper-quiet operation with noise levels as low as 35dB


Ideal Applications

  • Sewage treatment plant aeration
  • Septic tank air systems
  • Wastewater treatment facilities
  • Aquatic oxygenation
  • Koi ponds and ornamental ponds
  • Aquaculture and fish farming
  • Spas and whirlpools
  • Water features and fountains


Specifications:

  • Flow (l/min): 80
  • Pressure (bar): 0.10
  • Noise level (DB): 45.0
  • Power Consumption: 105W
  • Weight (KG): 7.0
  • Dimensions (mm): 260 x 185 x 201
  • Outlet Size: 18mm

 

Benefits of the ET80AO

The ET80AO is designed to deliver dependable aeration while providing advanced fault monitoring. The integrated pressure alarm and external beacon output offer additional peace of mind, ensuring that any loss of airflow is detected quickly before it can affect the performance of your treatment system. Its compact, weatherproof design allows for flexible installation in a wide range of environments, while its low power consumption helps keep operating costs to a minimum.


Why Choose the Charles Austen ET80AO?

Trusted by wastewater treatment professionals, installers, and pond owners throughout the UK, the ET80AO combines reliable oil-free aeration, ultra-quiet operation, and advanced alarm functionality in one durable package. Whether used for sewage treatment, pond aeration, or aquatic oxygenation, it provides long-lasting performance and exceptional value.

 

Warranty information

Charles Austen recommends that all air pumps and systems are serviced annually. Although the air pump carries a 2-year manufacturer's warranty, diaphragms, valves and filters are consumable parts that naturally wear over time and should be replaced during routine servicing to maintain warranty compliance and ensure reliable operation.

Please note: Product images are for illustration purposes only and may vary slightly from the actual product supplied.

 

 Data Sheet

 

SKU: BLOBLOWCHA011

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Rated 4.8/5 by Direct Drainage Customers

Based on over 600 verified reviews

VERIFIED REVIEW

Very helpful from the start to the finish

Items were despatched quickly and arrived the next day. Would recommend.

Title

North Hayne Farm Cottages | 26 June 2026

VERIFIED REVIEW

Cheapest price I could find for the pump

Cheapest price I could find for the pump and delivery the next day what more could you want.

Title

Sam Jukes | 5 November 2025

VERIFIED REVIEW

Great service!

I ordered a septic tank it was delivered within a week and the delivery driver left it in the exact right place and time. Would definitely use this company again, thanks so much.

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Eve Harland | December 2025

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FAQs

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When will my order be dispatched?

Spare Parts Shipping
We ship in-stock spare parts the same day if ordered before 3pm. These orders are sent with DPD as standard and will be shipped on a Tracked Next-Day service.


Tanks & Supplier-Shipped Items

Tanks and certain spare parts are shipped directly from our suppliers. We aim to submit supplier orders to the supplier on the same day your order is placed to ensure prompt processing. 

How much is delivery?

Delivery costs vary depending on the type of product:

 

In-stock Spare Parts: £8.20 - shipped via DPD on a Tracked Next-Day service.
Supplier-shipped Spare Parts: £15 - dispatched directly from the supplier.
Tanks and Sewage Treatment Systems: Free Delivery to most mainland UK postcodes.

 

All delivery charges are calculated accurately at checkout.

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Do you stock all tanks and sewage treatment systems?

We do not stock tanks and treatment systems as standard. These are supplied directly from the manufacturer. The lead times of these systems will vary. If you need an accurate delivery date, please contact us on 01388 537050.

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I've found the same item somewhere cheaper, can you match the price?

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Contact us directly on 01388 537050 or drop us an email at sales@direct-drainage.co.uk.